diff --git a/.editorconfig b/.editorconfig
index a0a79a0da..8c6d85f0e 100644
--- a/.editorconfig
+++ b/.editorconfig
@@ -1484,6 +1484,7 @@ dotnet_diagnostic.ph2151.severity = none
 dotnet_diagnostic.mt1001.severity = warning
 dotnet_diagnostic.RS1035.severity = none
 dotnet_diagnostic.RS1042.severity = none
+dotnet_diagnostic.ph2070.severity = none
 
 [*.{razor}]
 resharper_normalize_tag_names = false
\ No newline at end of file
diff --git a/.idea/.idea.Aaru/.idea/runConfigurations/Aaru.xml b/.idea/.idea.Aaru/.idea/runConfigurations/Aaru.xml
index 5c4cbdf80..80af6874f 100644
--- a/.idea/.idea.Aaru/.idea/runConfigurations/Aaru.xml
+++ b/.idea/.idea.Aaru/.idea/runConfigurations/Aaru.xml
@@ -1,7 +1,7 @@
 <component name="ProjectRunConfigurationManager">
   <configuration default="false" name="Aaru" type="DotNetProject" factoryName=".NET Project">
-    <option name="EXE_PATH" value="$PROJECT_DIR$/Aaru/bin/Debug/net10.0/aaru" />
-    <option name="PROGRAM_PARAMETERS" value="i info report_cdrom.aif" />
+    <option name="EXE_PATH" value="$PROJECT_DIR$/Aaru/bin/Debug/net10.0/linux-x64/aaru" />
+    <option name="PROGRAM_PARAMETERS" value="m scan /dev/sdb" />
     <option name="WORKING_DIRECTORY" value="/mnt/AaruTests/Media image formats/AaruFormat/V1" />
     <option name="PASS_PARENT_ENVS" value="1" />
     <option name="USE_EXTERNAL_CONSOLE" value="0" />
diff --git a/Aaru.Decryption/DVD/Dump.cs b/Aaru.Decryption/DVD/Dump.cs
index a04b483d1..3634f2ce0 100644
--- a/Aaru.Decryption/DVD/Dump.cs
+++ b/Aaru.Decryption/DVD/Dump.cs
@@ -62,7 +62,8 @@ public sealed class Dump(Device dev)
                         out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -74,11 +75,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.REPORT_ASF_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.REPORT_ASF_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -94,7 +95,8 @@ public sealed class Dump(Device dev)
                         out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -106,11 +108,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.REPORT_ASF_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.REPORT_ASF_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -126,7 +128,8 @@ public sealed class Dump(Device dev)
                                out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = [];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -138,11 +141,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.INVALIDATE_AGID_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.INVALIDATE_AGID_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -158,7 +161,8 @@ public sealed class Dump(Device dev)
                                   out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -170,11 +174,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.REPORT_AGID_CSS_CPPM_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.REPORT_AGID_CSS_CPPM_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -190,7 +194,8 @@ public sealed class Dump(Device dev)
                            out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[12];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -202,11 +207,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.REPORT_KEY1_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.REPORT_KEY1_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -222,7 +227,8 @@ public sealed class Dump(Device dev)
                                 out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[16];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -234,11 +240,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.REPORT_CHALLENGE_AGID_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   sense,
-                                   dev.LastError);
+                          Localization.REPORT_CHALLENGE_AGID_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          Agid,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -255,7 +261,8 @@ public sealed class Dump(Device dev)
                               uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[16];
 
         cdb[0]     = (byte)ScsiCommands.SendKey;
@@ -279,12 +286,12 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.Out, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.SEND_CHALLENGE_AGID_1_Challenge_2_Sense_3_Last_Error_4_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   challengeKey,
-                                   sense,
-                                   dev.LastError);
+                          Localization.SEND_CHALLENGE_AGID_1_Challenge_2_Sense_3_Last_Error_4_took_0_ms,
+                          duration,
+                          Agid,
+                          challengeKey,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -301,7 +308,8 @@ public sealed class Dump(Device dev)
                          out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[12];
 
         cdb[0]    = (byte)ScsiCommands.SendKey;
@@ -320,12 +328,12 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.Out, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.SEND_CHALLENGE_AGID_1_KEY2_2_Sense_3_Last_Error_4_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   key2,
-                                   sense,
-                                   dev.LastError);
+                          Localization.SEND_CHALLENGE_AGID_1_KEY2_2_Sense_3_Last_Error_4_took_0_ms,
+                          duration,
+                          Agid,
+                          key2,
+                          sense,
+                          dev.LastError);
 
         return sense;
     }
@@ -339,7 +347,8 @@ public sealed class Dump(Device dev)
     public bool ReadDiscKey(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[2052];
 
         cdb[0]  = (byte)ScsiCommands.ReadDiscStructure;
@@ -478,7 +487,8 @@ public sealed class Dump(Device dev)
         BusKey = buffer;
 
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = dev.CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[12];
 
         cdb[0]  = (byte)ScsiCommands.ReportKey;
@@ -494,11 +504,11 @@ public sealed class Dump(Device dev)
         dev.SendScsiCommand(cdb, ref buffer, out senseBuffer, timeout, ScsiDirection.In, out duration, out bool sense);
 
         AaruLogging.Debug(MODULE_NAME,
-                                   Localization.GET_TITLE_KEY_AGID_1_LBA_2_Sense_3_took_0_ms,
-                                   duration,
-                                   Agid,
-                                   address,
-                                   sense);
+                          Localization.GET_TITLE_KEY_AGID_1_LBA_2_Sense_3_took_0_ms,
+                          duration,
+                          Agid,
+                          address,
+                          sense);
 
         return sense;
     }
diff --git a/Aaru.Devices/Device/Commands.cs b/Aaru.Devices/Device/Commands.cs
index 9a2359337..fdacdd62e 100644
--- a/Aaru.Devices/Device/Commands.cs
+++ b/Aaru.Devices/Device/Commands.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using System.Diagnostics.CodeAnalysis;
 using Aaru.Decoders.ATA;
 
@@ -50,7 +51,7 @@ public partial class Device
     ///     <c>True</c> if SCSI command returned non-OK status and <paramref name="senseBuffer" /> contains
     ///     SCSI sense
     /// </param>
-    public virtual int SendScsiCommand(byte[]        cdb,       ref byte[] buffer, out byte[] senseBuffer, uint timeout,
+    public virtual int SendScsiCommand(Span<byte>    cdb,       ref byte[] buffer, out byte[] senseBuffer, uint timeout,
                                        ScsiDirection direction, out double duration, out bool sense)
     {
         duration    = 0;
diff --git a/Aaru.Devices/Device/Constructor.cs b/Aaru.Devices/Device/Constructor.cs
index 175f7d51f..84d16f609 100644
--- a/Aaru.Devices/Device/Constructor.cs
+++ b/Aaru.Devices/Device/Constructor.cs
@@ -33,6 +33,7 @@
 using System;
 using System.Diagnostics.CodeAnalysis;
 using System.Linq;
+using System.Runtime.InteropServices;
 using Aaru.CommonTypes.Enums;
 using Aaru.CommonTypes.Structs.Devices.ATA;
 using Aaru.CommonTypes.Structs.Devices.SCSI;
@@ -48,9 +49,35 @@ namespace Aaru.Devices;
 [SuppressMessage("ReSharper", "MemberCanBePrivate.Global")]
 [SuppressMessage("ReSharper", "UnusedMember.Global")]
 [SuppressMessage("ReSharper", "UnusedMethodReturnValue.Global")]
-public partial class Device
+public partial class Device : IDisposable
 {
-    protected Device() {}
+    // Pointer to send CDB to device
+    protected unsafe void* CdbPtr;
+
+    protected Device()
+    {
+        unsafe
+        {
+            CdbPtr = NativeMemory.AlignedAlloc(16, 64);
+            NativeMemory.Clear(CdbPtr, 16);
+        }
+    }
+
+    // Span to make pointer usable as data. Fixed size CDB is maximum 16 bytes. Variable size CDB is another problem.
+    public unsafe Span<byte> CdbBuffer => new(CdbPtr, 16);
+
+#region IDisposable Members
+
+    /// <inheritdoc />
+    public unsafe void Dispose()
+    {
+        void* p = CdbPtr;
+        CdbPtr = null;
+        if(p != null) NativeMemory.AlignedFree(p);
+        GC.SuppressFinalize(this);
+    }
+
+#endregion
 
     /// <summary>Opens the device for sending direct commands</summary>
     /// <param name="devicePath">Device path</param>
@@ -184,8 +211,9 @@ public partial class Device
             if(string.IsNullOrEmpty(dev.Serial))
                 dev.Serial = dev.UsbSerialString;
             else
-                foreach(char c in dev.Serial.Where(c => !char.IsControl(c)))
-                    dev.Serial = $"{dev.Serial}{c:X2}";
+            {
+                foreach(char c in dev.Serial.Where(c => !char.IsControl(c))) dev.Serial = $"{dev.Serial}{c:X2}";
+            }
         }
 
         if(dev.IsFireWire)
@@ -197,8 +225,9 @@ public partial class Device
             if(string.IsNullOrEmpty(dev.Serial))
                 dev.Serial = $"{dev.FirewireGuid:X16}";
             else
-                foreach(char c in dev.Serial.Where(c => !char.IsControl(c)))
-                    dev.Serial = $"{dev.Serial}{c:X2}";
+            {
+                foreach(char c in dev.Serial.Where(c => !char.IsControl(c))) dev.Serial = $"{dev.Serial}{c:X2}";
+            }
         }
 
         // Some optical drives are not getting the correct serial, and IDENTIFY PACKET DEVICE is blocked without
diff --git a/Aaru.Devices/Device/Destructor.cs b/Aaru.Devices/Device/Destructor.cs
index 46a10d0bf..8f691fa8e 100644
--- a/Aaru.Devices/Device/Destructor.cs
+++ b/Aaru.Devices/Device/Destructor.cs
@@ -30,6 +30,8 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System.Runtime.InteropServices;
+
 namespace Aaru.Devices;
 
 public partial class Device
@@ -38,7 +40,12 @@ public partial class Device
     ///     Releases unmanaged resources and performs other cleanup operations before the <see cref="Device" /> is
     ///     reclaimed by garbage collection.
     /// </summary>
-    ~Device() => Close();
+    unsafe ~Device()
+    {
+        if(CdbPtr != null) NativeMemory.AlignedFree(CdbPtr);
+
+        Close();
+    }
 
     /// <summary>Closes a device</summary>
     public virtual void Close() {}
diff --git a/Aaru.Devices/Device/ScsiCommands/Adaptec.cs b/Aaru.Devices/Device/ScsiCommands/Adaptec.cs
index 836663ccb..4725f8ab0 100644
--- a/Aaru.Devices/Device/ScsiCommands/Adaptec.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Adaptec.cs
@@ -61,7 +61,8 @@ public partial class Device
                                  out double duration)
     {
         buffer = new byte[8];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.AdaptecTranslate;
@@ -107,7 +108,8 @@ public partial class Device
     {
         byte[] buffer = new byte[1];
         buffer[0] = threshold;
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.AdaptecSetErrorThreshold;
@@ -149,7 +151,8 @@ public partial class Device
                                         out double duration)
     {
         buffer = new byte[9];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.AdaptecTranslate;
@@ -183,7 +186,8 @@ public partial class Device
         byte[] oneKBuffer = new byte[1024];
         Array.Copy(buffer, 0, oneKBuffer, 0, buffer.Length < 1024 ? buffer.Length : 1024);
 
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.AdaptecWriteBuffer;
@@ -211,7 +215,8 @@ public partial class Device
     public bool AdaptecReadBuffer(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         buffer = new byte[1024];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.AdaptecReadBuffer;
diff --git a/Aaru.Devices/Device/ScsiCommands/ArchiveCorp.cs b/Aaru.Devices/Device/ScsiCommands/ArchiveCorp.cs
index 51c4062ec..8ea66951a 100644
--- a/Aaru.Devices/Device/ScsiCommands/ArchiveCorp.cs
+++ b/Aaru.Devices/Device/ScsiCommands/ArchiveCorp.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 // ReSharper disable UnusedMember.Global
@@ -48,7 +49,8 @@ public partial class Device
                                                out double duration)
     {
         buffer = new byte[3];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ArchiveRequestBlockAddress;
@@ -67,9 +69,7 @@ public partial class Device
 
         Error = LastError != 0;
 
-        AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization.ARCHIVE_CORP_REQUEST_BLOCK_ADDRESS_took_0_ms,
-                                   duration);
+        AaruLogging.Debug(SCSI_MODULE_NAME, Localization.ARCHIVE_CORP_REQUEST_BLOCK_ADDRESS_took_0_ms, duration);
 
         return sense;
     }
@@ -91,8 +91,9 @@ public partial class Device
     public bool ArchiveCorpSeekBlock(out byte[] senseBuffer, bool immediate, uint lba, uint timeout,
                                      out double duration)
     {
-        byte[] buffer = [];
-        byte[] cdb    = new byte[6];
+        byte[]     buffer = [];
+        Span<byte> cdb    = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ArchiveSeekBlock;
diff --git a/Aaru.Devices/Device/ScsiCommands/Certance.cs b/Aaru.Devices/Device/ScsiCommands/Certance.cs
index c15542d92..809bd9807 100644
--- a/Aaru.Devices/Device/ScsiCommands/Certance.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Certance.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using System.Diagnostics.CodeAnalysis;
 using Aaru.Logging;
 
@@ -59,8 +60,9 @@ public partial class Device
     /// <param name="duration">Duration.</param>
     public bool CertanceParkUnpark(out byte[] senseBuffer, bool park, uint timeout, out double duration)
     {
-        byte[] buffer = [];
-        byte[] cdb    = new byte[6];
+        byte[]     buffer = [];
+        Span<byte> cdb    = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.CertanceParkUnpark;
diff --git a/Aaru.Devices/Device/ScsiCommands/Fujitsu.cs b/Aaru.Devices/Device/ScsiCommands/Fujitsu.cs
index 44ba9e18f..8c75ea873 100644
--- a/Aaru.Devices/Device/ScsiCommands/Fujitsu.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Fujitsu.cs
@@ -51,13 +51,14 @@ public partial class Device
     public bool FujitsuDisplay(out byte[] senseBuffer, bool flash,   FujitsuDisplayModes mode, string firstHalf,
                                string     secondHalf,  uint timeout, out double          duration)
     {
-        byte[] tmp;
-        byte[] firstHalfBytes  = new byte[8];
-        byte[] secondHalfBytes = new byte[8];
-        byte[] buffer          = new byte[17];
-        bool   displayLen      = false;
-        bool   halfMsg         = false;
-        byte[] cdb             = new byte[10];
+        byte[]     tmp;
+        byte[]     firstHalfBytes  = new byte[8];
+        byte[]     secondHalfBytes = new byte[8];
+        byte[]     buffer          = new byte[17];
+        bool       displayLen      = false;
+        bool       halfMsg         = false;
+        Span<byte> cdb             = CdbBuffer[..10];
+        cdb.Clear();
 
         if(!string.IsNullOrWhiteSpace(firstHalf))
         {
diff --git a/Aaru.Devices/Device/ScsiCommands/HL-DT-ST.cs b/Aaru.Devices/Device/ScsiCommands/HL-DT-ST.cs
index ed60b0ddd..36653edfa 100644
--- a/Aaru.Devices/Device/ScsiCommands/HL-DT-ST.cs
+++ b/Aaru.Devices/Device/ScsiCommands/HL-DT-ST.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using System.Collections.Generic;
 using Aaru.CommonTypes.Enums;
 using Aaru.Decoders.DVD;
@@ -60,7 +61,8 @@ public partial class Device
         Read12(out _, out _, 0, false, false, false, false, lba, 2048, 0, 16, false, timeout, out duration);
 
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[2064 * transferLength];
 
         uint cacheDataOffset = 0x80000000 + lba % 96 * 2064;
diff --git a/Aaru.Devices/Device/ScsiCommands/HP.cs b/Aaru.Devices/Device/ScsiCommands/HP.cs
index ff77ce014..a9b833663 100644
--- a/Aaru.Devices/Device/ScsiCommands/HP.cs
+++ b/Aaru.Devices/Device/ScsiCommands/HP.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 // ReSharper disable UnusedMember.Global
@@ -71,7 +72,8 @@ public partial class Device
                            ushort     blockBytes, bool pba, bool sectorCount, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ReadLong;
 
diff --git a/Aaru.Devices/Device/ScsiCommands/Kreon.cs b/Aaru.Devices/Device/ScsiCommands/Kreon.cs
index 5a40c5f85..5c1e4bcf8 100644
--- a/Aaru.Devices/Device/ScsiCommands/Kreon.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Kreon.cs
@@ -45,7 +45,8 @@ public partial class Device
     public bool KreonDeprecatedUnlock(out byte[] senseBuffer, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.KreonCommand;
@@ -101,7 +102,8 @@ public partial class Device
     public bool KreonSetLockState(out byte[] senseBuffer, KreonLockStates state, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.KreonCommand;
@@ -135,7 +137,8 @@ public partial class Device
                                     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = new byte[26];
         features = 0;
 
@@ -225,7 +228,8 @@ public partial class Device
                                byte       requestNumber = 0x00)
     {
         buffer = new byte[2048];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0]  = (byte)ScsiCommands.KreonSsCommand;
diff --git a/Aaru.Devices/Device/ScsiCommands/LiteOn.cs b/Aaru.Devices/Device/ScsiCommands/LiteOn.cs
index b294de9fd..676c28f78 100644
--- a/Aaru.Devices/Device/ScsiCommands/LiteOn.cs
+++ b/Aaru.Devices/Device/ScsiCommands/LiteOn.cs
@@ -115,7 +115,8 @@ public partial class Device
         Read12(out _, out _, 0, false, false, false, false, lba, 2048, 0, 16, false, timeout, out duration);
 
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         buffer = new byte[transferLength];
 
diff --git a/Aaru.Devices/Device/ScsiCommands/MMC.cs b/Aaru.Devices/Device/ScsiCommands/MMC.cs
index 16c9fe269..27d4a93b4 100644
--- a/Aaru.Devices/Device/ScsiCommands/MMC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/MMC.cs
@@ -79,7 +79,8 @@ public partial class Device
                                  MmcGetConfigurationRt rt,     uint       timeout,     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0] = (byte)ScsiCommands.GetConfiguration;
@@ -119,13 +120,13 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .GET_CONFIGURATION_Starting_Feature_Number_1_Return_Type_2_Sense_3_Last_Error_4_took_0_ms,
-                                   duration,
-                                   startingFeatureNumber,
-                                   rt,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .GET_CONFIGURATION_Starting_Feature_Number_1_Return_Type_2_Sense_3_Last_Error_4_took_0_ms,
+                          duration,
+                          startingFeatureNumber,
+                          rt,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -146,7 +147,8 @@ public partial class Device
                                   uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0]  = (byte)ScsiCommands.ReadDiscStructure;
@@ -206,16 +208,16 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .READ_DISC_STRUCTURE_Media_Type_1_Address_2_Layer_Number_3_Format_4_AGID_5_Sense_6_Last_Error_7_took_0_ms,
-                                   duration,
-                                   mediaType,
-                                   address,
-                                   layerNumber,
-                                   format,
-                                   agid,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .READ_DISC_STRUCTURE_Media_Type_1_Address_2_Layer_Number_3_Format_4_AGID_5_Sense_6_Last_Error_7_took_0_ms,
+                          duration,
+                          mediaType,
+                          address,
+                          layerNumber,
+                          format,
+                          agid,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -313,7 +315,8 @@ public partial class Device
                                byte       trackSessionNumber, uint       timeout,     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         byte[] tmpBuffer = (format & 0x0F) == 5 ? new byte[32768] : new byte[1536];
 
@@ -344,14 +347,14 @@ public partial class Device
             Array.Copy(tmpBuffer, 0, buffer, 0, buffer.Length);
 
             AaruLogging.Debug(SCSI_MODULE_NAME,
-                                       Localization
-                                          .READ_TOC_PMA_ATIP_took_MSF_1_Format_2_Track_Session_Number_3_Sense_4_LastError_5_0_ms,
-                                       duration,
-                                       msf,
-                                       format,
-                                       trackSessionNumber,
-                                       sense,
-                                       LastError);
+                              Localization
+                                 .READ_TOC_PMA_ATIP_took_MSF_1_Format_2_Track_Session_Number_3_Sense_4_LastError_5_0_ms,
+                              duration,
+                              msf,
+                              format,
+                              trackSessionNumber,
+                              sense,
+                              LastError);
 
             return sense;
         }
@@ -371,14 +374,14 @@ public partial class Device
         duration += tmpDuration;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .READ_TOC_PMA_ATIP_took_MSF_1_Format_2_Track_Session_Number_3_Sense_4_LastError_5_0_ms,
-                                   duration,
-                                   msf,
-                                   format,
-                                   trackSessionNumber,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .READ_TOC_PMA_ATIP_took_MSF_1_Format_2_Track_Session_Number_3_Sense_4_LastError_5_0_ms,
+                          duration,
+                          msf,
+                          format,
+                          trackSessionNumber,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -407,7 +410,8 @@ public partial class Device
                                     uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb       = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] tmpBuffer = new byte[804];
 
         cdb[0] = (byte)ScsiCommands.ReadDiscInformation;
@@ -433,11 +437,11 @@ public partial class Device
         Array.Copy(tmpBuffer, 0, buffer, 0, buffer.Length);
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization.READ_DISC_INFORMATION_Data_Type_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   dataType,
-                                   sense,
-                                   LastError);
+                          Localization.READ_DISC_INFORMATION_Data_Type_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          dataType,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -466,7 +470,8 @@ public partial class Device
                        out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ReadCd;
         cdb[1] = (byte)((byte)expectedSectorType << 2);
@@ -506,23 +511,23 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .READ_CD_LBA_1_Block_Size_2_Transfer_Length_3_Expected_Sector_Type_4_DAP_5_Relative_Address_6_Sync_7_Headers_8_User_Data_9_ECC_EDC_10_C2_11_Subchannel_12_Sense_13_Last_Error_14_took_0_ms,
-                                   duration,
-                                   lba,
-                                   blockSize,
-                                   transferLength,
-                                   expectedSectorType,
-                                   dap,
-                                   relAddr,
-                                   sync,
-                                   headerCodes,
-                                   userData,
-                                   edcEcc,
-                                   c2Error,
-                                   subchannel,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .READ_CD_LBA_1_Block_Size_2_Transfer_Length_3_Expected_Sector_Type_4_DAP_5_Relative_Address_6_Sync_7_Headers_8_User_Data_9_ECC_EDC_10_C2_11_Subchannel_12_Sense_13_Last_Error_14_took_0_ms,
+                          duration,
+                          lba,
+                          blockSize,
+                          transferLength,
+                          expectedSectorType,
+                          dap,
+                          relAddr,
+                          sync,
+                          headerCodes,
+                          userData,
+                          edcEcc,
+                          c2Error,
+                          subchannel,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -550,7 +555,8 @@ public partial class Device
                           out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ReadCdMsf;
         cdb[1] = (byte)((byte)expectedSectorType << 2);
@@ -589,22 +595,22 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .READ_CD_MSF_Start_MSF_1_End_MSF_2_Block_Size_3_Expected_Sector_Type_4_DAP_5_Sync_6_Headers_7_User_Data_8_ECC_EDC_9_C2_10_Subchannel_11_Sense_12_LastError_13_took_0_ms,
-                                   duration,
-                                   startMsf,
-                                   endMsf,
-                                   blockSize,
-                                   expectedSectorType,
-                                   dap,
-                                   sync,
-                                   headerCodes,
-                                   userData,
-                                   edcEcc,
-                                   c2Error,
-                                   subchannel,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .READ_CD_MSF_Start_MSF_1_End_MSF_2_Block_Size_3_Expected_Sector_Type_4_DAP_5_Sync_6_Headers_7_User_Data_8_ECC_EDC_9_C2_10_Subchannel_11_Sense_12_LastError_13_took_0_ms,
+                          duration,
+                          startMsf,
+                          endMsf,
+                          blockSize,
+                          expectedSectorType,
+                          dap,
+                          sync,
+                          headerCodes,
+                          userData,
+                          edcEcc,
+                          c2Error,
+                          subchannel,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -636,7 +642,8 @@ public partial class Device
                                           out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.PreventAllowMediumRemoval;
@@ -656,13 +663,13 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .PREVENT_ALLOW_MEDIUM_REMOVAL_Persistent_1_Prevent_2_Sense_3_LastError_4_took_0_ms,
-                                   duration,
-                                   persistent,
-                                   prevent,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .PREVENT_ALLOW_MEDIUM_REMOVAL_Persistent_1_Prevent_2_Sense_3_LastError_4_took_0_ms,
+                          duration,
+                          persistent,
+                          prevent,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -714,7 +721,8 @@ public partial class Device
                               bool changeFormatLayer, bool loadEject, bool start, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.StartStopUnit;
@@ -746,17 +754,17 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .START_STOP_UNIT_Immediate_1_FormatLayer_2_Power_Conditions_3_Change_Format_Layer_4_Load_Eject_5_Start_6_Sense_7_Last_Error_8_took_0_ms,
-                                   duration,
-                                   immediate,
-                                   formatLayer,
-                                   powerConditions,
-                                   changeFormatLayer,
-                                   loadEject,
-                                   start,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .START_STOP_UNIT_Immediate_1_FormatLayer_2_Power_Conditions_3_Change_Format_Layer_4_Load_Eject_5_Start_6_Sense_7_Last_Error_8_took_0_ms,
+                          duration,
+                          immediate,
+                          formatLayer,
+                          powerConditions,
+                          changeFormatLayer,
+                          loadEject,
+                          start,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -772,7 +780,8 @@ public partial class Device
     public bool ReadMcn(out string mcn, out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         mcn = null;
 
         cdb[0] = (byte)ScsiCommands.ReadSubChannel;
@@ -795,10 +804,10 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization.READ_READ_SUB_CHANNEL_MCN_Sense_1_Last_Error_2_took_0_ms,
-                                   duration,
-                                   sense,
-                                   LastError);
+                          Localization.READ_READ_SUB_CHANNEL_MCN_Sense_1_Last_Error_2_took_0_ms,
+                          duration,
+                          sense,
+                          LastError);
 
         if(!sense && (buffer[8] & 0x80) == 0x80) mcn = Encoding.ASCII.GetString(buffer, 9, 13);
 
@@ -818,7 +827,8 @@ public partial class Device
                          out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         isrc = null;
 
         cdb[0] = (byte)ScsiCommands.ReadSubChannel;
@@ -842,12 +852,11 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .READ_READ_SUB_CHANNEL_ISRC_Track_Number_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   trackNumber,
-                                   sense,
-                                   LastError);
+                          Localization.READ_READ_SUB_CHANNEL_ISRC_Track_Number_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          trackNumber,
+                          sense,
+                          LastError);
 
         if(!sense && (buffer[8] & 0x80) == 0x80) isrc = Encoding.ASCII.GetString(buffer, 9, 12);
 
@@ -866,7 +875,8 @@ public partial class Device
                            ushort     writeSpeed,  uint              timeout,           out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.SetCdRomSpeed;
@@ -887,14 +897,14 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .SET_CD_SPEED_Rotational_Control_1_Read_Speed_2_Write_Speed_3_Sense_4_Last_Error_5_took_0_ms,
-                                   duration,
-                                   rotationalControl,
-                                   readSpeed,
-                                   writeSpeed,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .SET_CD_SPEED_Rotational_Control_1_Read_Speed_2_Write_Speed_3_Sense_4_Last_Error_5_took_0_ms,
+                          duration,
+                          rotationalControl,
+                          readSpeed,
+                          writeSpeed,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -912,7 +922,8 @@ public partial class Device
                                      uint       address, uint       timeout,     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[48];
 
         cdb[0] = (byte)ScsiCommands.ReadTrackInformation;
@@ -937,11 +948,11 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization.READ_TRACK_INFORMATION_Data_Type_1_Sense_2_Last_Error_3_took_0_ms,
-                                   duration,
-                                   type,
-                                   sense,
-                                   LastError);
+                          Localization.READ_TRACK_INFORMATION_Data_Type_1_Sense_2_Last_Error_3_took_0_ms,
+                          duration,
+                          type,
+                          sense,
+                          LastError);
 
         return sense;
     }
diff --git a/Aaru.Devices/Device/ScsiCommands/MediaTek.cs b/Aaru.Devices/Device/ScsiCommands/MediaTek.cs
index bc82ee5e0..2ba9e25e4 100644
--- a/Aaru.Devices/Device/ScsiCommands/MediaTek.cs
+++ b/Aaru.Devices/Device/ScsiCommands/MediaTek.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 namespace Aaru.Devices;
@@ -48,7 +49,8 @@ public partial class Device
                                  out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[length];
 
         cdb[0] = (byte)ScsiCommands.MediaTekVendorCommand;
diff --git a/Aaru.Devices/Device/ScsiCommands/MiniDisc.cs b/Aaru.Devices/Device/ScsiCommands/MiniDisc.cs
index ca63060b9..d532b0950 100644
--- a/Aaru.Devices/Device/ScsiCommands/MiniDisc.cs
+++ b/Aaru.Devices/Device/ScsiCommands/MiniDisc.cs
@@ -32,6 +32,7 @@
 
 // ReSharper disable InconsistentNaming
 
+using System;
 using Aaru.Logging;
 
 // ReSharper disable UnusedMember.Global
@@ -50,7 +51,8 @@ public partial class Device
     {
         const ushort transferLength = 2336;
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscReadDTOC;
 
@@ -86,7 +88,8 @@ public partial class Device
     {
         const ushort transferLength = 2336;
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscReadUTOC;
 
@@ -124,7 +127,8 @@ public partial class Device
     {
         const ushort transferLength = 4;
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscD5;
 
@@ -157,7 +161,8 @@ public partial class Device
     public bool MiniDiscStopPlaying(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscStopPlay;
 
@@ -188,7 +193,8 @@ public partial class Device
     {
         const ushort transferLength = 4;
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscReadPosition;
 
@@ -222,7 +228,8 @@ public partial class Device
     {
         const ushort transferLength = 8;
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.MiniDiscGetType;
 
diff --git a/Aaru.Devices/Device/ScsiCommands/NEC.cs b/Aaru.Devices/Device/ScsiCommands/NEC.cs
index d790d4ba8..26ef84257 100644
--- a/Aaru.Devices/Device/ScsiCommands/NEC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/NEC.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 namespace Aaru.Devices;
@@ -48,7 +49,8 @@ public partial class Device
                             out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.NecReadCdDa;
         cdb[2] = (byte)((lba & 0xFF000000) >> 24);
diff --git a/Aaru.Devices/Device/ScsiCommands/Optical.cs b/Aaru.Devices/Device/ScsiCommands/Optical.cs
index 0ce991a14..09ad1b4db 100644
--- a/Aaru.Devices/Device/ScsiCommands/Optical.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Optical.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Decoders.SCSI;
 using Aaru.Logging;
 
@@ -62,7 +63,8 @@ public partial class Device
                            out uint   foundBlocks, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = [];
         foundLba    = 0;
         foundBlocks = 0;
diff --git a/Aaru.Devices/Device/ScsiCommands/Pioneer.cs b/Aaru.Devices/Device/ScsiCommands/Pioneer.cs
index 819feea74..9fddd6e1c 100644
--- a/Aaru.Devices/Device/ScsiCommands/Pioneer.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Pioneer.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 namespace Aaru.Devices;
@@ -50,7 +51,8 @@ public partial class Device
                                 uint transferLength, PioneerSubchannel subchannel, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.ReadCdDa;
         cdb[2]  = (byte)((lba & 0xFF000000) >> 24);
@@ -93,7 +95,8 @@ public partial class Device
                                    uint blockSize, PioneerSubchannel subchannel, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.ReadCdDaMsf;
         cdb[3]  = (byte)((startMsf & 0xFF0000) >> 16);
@@ -139,7 +142,8 @@ public partial class Device
                                 bool       errorFlags, bool       wholeSector, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ReadCdXa;
         cdb[2] = (byte)((lba & 0xFF000000) >> 24);
diff --git a/Aaru.Devices/Device/ScsiCommands/Plasmon.cs b/Aaru.Devices/Device/ScsiCommands/Plasmon.cs
index 51ded24e5..d7470b0d2 100644
--- a/Aaru.Devices/Device/ScsiCommands/Plasmon.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Plasmon.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 // ReSharper disable UnusedMember.Global
@@ -92,7 +93,8 @@ public partial class Device
                                           uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlasmonReadSectorLocation;
         cdb[2] = (byte)((address & 0xFF000000) >> 24);
diff --git a/Aaru.Devices/Device/ScsiCommands/Plextor.cs b/Aaru.Devices/Device/ScsiCommands/Plextor.cs
index 98225585f..ea1009c99 100644
--- a/Aaru.Devices/Device/ScsiCommands/Plextor.cs
+++ b/Aaru.Devices/Device/ScsiCommands/Plextor.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Helpers;
 using Aaru.Logging;
 
@@ -51,7 +52,8 @@ public partial class Device
                                 uint transferLength, PlextorSubchannel subchannel, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.ReadCdDa;
         cdb[2]  = (byte)((lba & 0xFF000000) >> 24);
@@ -77,15 +79,15 @@ public partial class Device
         Error = LastError != 0;
 
         AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization
-                                      .Plextor_READ_CD_DA_LBA_1_Block_Size_2_Transfer_Length_3_Subchannel_4_Sense_5_Last_Error_6_took_0_ms,
-                                   duration,
-                                   lba,
-                                   blockSize,
-                                   transferLength,
-                                   subchannel,
-                                   sense,
-                                   LastError);
+                          Localization
+                             .Plextor_READ_CD_DA_LBA_1_Block_Size_2_Transfer_Length_3_Subchannel_4_Sense_5_Last_Error_6_took_0_ms,
+                          duration,
+                          lba,
+                          blockSize,
+                          transferLength,
+                          subchannel,
+                          sense,
+                          LastError);
 
         return sense;
     }
@@ -102,7 +104,8 @@ public partial class Device
                                   uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[2064 * transferLength];
 
         cdb[0] = (byte)ScsiCommands.ReadBuffer;
@@ -139,7 +142,8 @@ public partial class Device
     {
         buffer      = new byte[256];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlextorReadEeprom;
         cdb[8] = 1;
@@ -169,7 +173,8 @@ public partial class Device
     {
         buffer      = new byte[512];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlextorReadEeprom;
         cdb[8] = 2;
@@ -202,7 +207,8 @@ public partial class Device
     {
         buffer      = new byte[blockSize];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlextorReadEeprom;
         cdb[1] = 1;
@@ -238,7 +244,8 @@ public partial class Device
     {
         byte[] buf = new byte[10];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         selected = 0;
         max      = 0;
@@ -280,7 +287,8 @@ public partial class Device
     {
         byte[] buf = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         enabled = false;
         speed   = 0;
@@ -319,7 +327,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[1]  = (byte)PlextorSubCommands.GetMode;
@@ -352,7 +361,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[1]  = (byte)PlextorSubCommands.GetMode;
@@ -386,7 +396,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[1]  = (byte)PlextorSubCommands.GetMode;
@@ -423,7 +434,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[2]  = (byte)PlextorSubCommands.SecuRec;
@@ -454,7 +466,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[1]  = (byte)PlextorSubCommands.GetMode;
@@ -486,7 +499,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlextorExtend;
         cdb[1] = (byte)PlextorSubCommands.GetMode;
@@ -503,9 +517,7 @@ public partial class Device
 
         Error = LastError != 0;
 
-        AaruLogging.Debug(SCSI_MODULE_NAME,
-                                   Localization.PLEXTOR_GET_SINGLE_SESSION_HIDE_CD_R_took_0_ms,
-                                   duration);
+        AaruLogging.Debug(SCSI_MODULE_NAME, Localization.PLEXTOR_GET_SINGLE_SESSION_HIDE_CD_R_took_0_ms, duration);
 
         return sense;
     }
@@ -522,7 +534,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.PlextorExtend;
         cdb[1] = (byte)PlextorSubCommands.GetMode;
@@ -559,7 +572,8 @@ public partial class Device
     {
         buffer      = new byte[8];
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0]  = (byte)ScsiCommands.PlextorExtend;
         cdb[1]  = (byte)PlextorSubCommands.GetMode;
diff --git a/Aaru.Devices/Device/ScsiCommands/SBC.cs b/Aaru.Devices/Device/ScsiCommands/SBC.cs
index f22105bfe..06f499f3f 100644
--- a/Aaru.Devices/Device/ScsiCommands/SBC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/SBC.cs
@@ -62,7 +62,8 @@ public partial class Device
                       uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.Read6;
         cdb[1] = (byte)((lba & 0x1F0000) >> 16);
@@ -113,7 +114,8 @@ public partial class Device
                        out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.Read10;
         cdb[1] = (byte)((rdprotect & 0x07) << 5);
@@ -178,7 +180,8 @@ public partial class Device
                        uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.Read12;
         cdb[1] = (byte)((rdprotect & 0x07) << 5);
@@ -246,7 +249,8 @@ public partial class Device
                        out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb      = new byte[16];
+        Span<byte> cdb = CdbBuffer[..16];
+        cdb.Clear();
         byte[] lbaBytes = BitConverter.GetBytes(lba);
 
         cdb[0] = (byte)ScsiCommands.Read16;
@@ -308,7 +312,8 @@ public partial class Device
                            ushort     transferBytes, uint       timeout,     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ReadLong;
 
@@ -356,7 +361,8 @@ public partial class Device
                            uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb      = new byte[16];
+        Span<byte> cdb = CdbBuffer[..16];
+        cdb.Clear();
         byte[] lbaBytes = BitConverter.GetBytes(lba);
 
         cdb[0]  = (byte)ScsiCommands.ServiceActionIn;
@@ -399,7 +405,8 @@ public partial class Device
     public bool Seek6(out byte[] senseBuffer, uint lba, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.Seek6;
@@ -430,7 +437,8 @@ public partial class Device
     public bool Seek10(out byte[] senseBuffer, uint lba, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.Seek10;
diff --git a/Aaru.Devices/Device/ScsiCommands/SMC.cs b/Aaru.Devices/Device/ScsiCommands/SMC.cs
index f39dc3439..6fad2c150 100644
--- a/Aaru.Devices/Device/ScsiCommands/SMC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/SMC.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 namespace Aaru.Devices;
@@ -53,7 +54,8 @@ public partial class Device
                               uint       timeout, out double duration)
     {
         buffer = new byte[256];
-        byte[] cdb = new byte[16];
+        Span<byte> cdb = CdbBuffer[..16];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0]  = (byte)ScsiCommands.ReadAttribute;
diff --git a/Aaru.Devices/Device/ScsiCommands/SPC.cs b/Aaru.Devices/Device/ScsiCommands/SPC.cs
index e52261329..e757a4df3 100644
--- a/Aaru.Devices/Device/ScsiCommands/SPC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/SPC.cs
@@ -77,7 +77,15 @@ public partial class Device
         buffer      = new byte[36];
         senseBuffer = new byte[64];
 
-        byte[] cdb = [(byte)ScsiCommands.Inquiry, 0, 0, 0, 36, 0];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
+
+        cdb[0] = (byte)ScsiCommands.Inquiry;
+        cdb[1] = 0;
+        cdb[2] = 0;
+        cdb[3] = 0;
+        cdb[4] = 36;
+        cdb[5] = 0;
 
         LastError = SendScsiCommand(cdb,
                                     ref buffer,
@@ -93,7 +101,12 @@ public partial class Device
 
         byte pagesLength = (byte)(buffer[4] + 5);
 
-        cdb = [(byte)ScsiCommands.Inquiry, 0, 0, 0, pagesLength, 0];
+        cdb[0] = (byte)ScsiCommands.Inquiry;
+        cdb[1] = 0;
+        cdb[2] = 0;
+        cdb[3] = 0;
+        cdb[4] = pagesLength;
+        cdb[5] = 0;
 
         buffer      = new byte[pagesLength];
         senseBuffer = new byte[64];
@@ -157,7 +170,14 @@ public partial class Device
         buffer      = new byte[36];
         senseBuffer = new byte[64];
 
-        byte[] cdb = [(byte)ScsiCommands.Inquiry, 1, page, 0, 36, 0];
+        Span<byte> cdb = CdbBuffer[..6];
+
+        cdb[0] = (byte)ScsiCommands.Inquiry;
+        cdb[1] = 1;
+        cdb[2] = page;
+        cdb[3] = 0;
+        cdb[4] = 36;
+        cdb[5] = 0;
 
         LastError = SendScsiCommand(cdb,
                                     ref buffer,
@@ -176,7 +196,12 @@ public partial class Device
 
         byte pagesLength = (byte)(buffer[3] + 4);
 
-        cdb = [(byte)ScsiCommands.Inquiry, 1, page, 0, pagesLength, 0];
+        cdb[0] = (byte)ScsiCommands.Inquiry;
+        cdb[1] = 1;
+        cdb[2] = page;
+        cdb[3] = 0;
+        cdb[4] = pagesLength;
+        cdb[5] = 0;
 
         buffer      = new byte[pagesLength];
         senseBuffer = new byte[64];
@@ -205,7 +230,10 @@ public partial class Device
     {
         senseBuffer = new byte[64];
 
-        byte[] cdb = [(byte)ScsiCommands.TestUnitReady, 0, 0, 0, 0, 0];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
+
+        cdb[0] = (byte)ScsiCommands.TestUnitReady;
 
         byte[] buffer = [];
 
@@ -260,9 +288,11 @@ public partial class Device
                            byte       pageCode, byte       subPageCode, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         buffer = new byte[254];
 
+
         cdb[0] = (byte)ScsiCommands.ModeSense;
 
         if(dbd) cdb[1] = 0x08;
@@ -350,7 +380,8 @@ public partial class Device
                             out double               duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[4096];
 
         cdb[0] = (byte)ScsiCommands.ModeSense10;
@@ -438,7 +469,8 @@ public partial class Device
                                              out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.PreventAllowMediumRemoval;
@@ -481,7 +513,8 @@ public partial class Device
                              uint       timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         buffer = new byte[8];
 
         cdb[0] = (byte)ScsiCommands.ReadCapacity;
@@ -534,7 +567,8 @@ public partial class Device
                                out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[16];
+        Span<byte> cdb = CdbBuffer[..16];
+        cdb.Clear();
         buffer = new byte[32];
 
         cdb[0] = (byte)ScsiCommands.ServiceActionIn;
@@ -583,7 +617,8 @@ public partial class Device
     public bool ReadMediaSerialNumber(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[12];
+        Span<byte> cdb = CdbBuffer[..12];
+        cdb.Clear();
         buffer = new byte[4];
 
         cdb[0] = (byte)ScsiCommands.ReadSerialNumber;
@@ -775,7 +810,8 @@ public partial class Device
             return true;
         }
 
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
 
         cdb[0] = (byte)ScsiCommands.ModeSelect;
 
@@ -832,9 +868,8 @@ public partial class Device
             return true;
         }
 
-        byte[] cdb = new byte[10];
-
-        cdb[0] = (byte)ScsiCommands.ModeSelect10;
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
 
         if(pageFormat) cdb[1] += 0x10;
 
@@ -874,7 +909,8 @@ public partial class Device
     /// <returns><c>true</c> if the command failed.</returns>
     public bool RequestSense(bool descriptor, out byte[] buffer, uint timeout, out double duration)
     {
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         buffer = new byte[252];
 
         cdb[0] = (byte)ScsiCommands.RequestSense;
diff --git a/Aaru.Devices/Device/ScsiCommands/SSC.cs b/Aaru.Devices/Device/ScsiCommands/SSC.cs
index cbdcb5107..27fad0fd6 100644
--- a/Aaru.Devices/Device/ScsiCommands/SSC.cs
+++ b/Aaru.Devices/Device/ScsiCommands/SSC.cs
@@ -74,7 +74,8 @@ public partial class Device
                            uint       timeout,     out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.LoadUnload;
@@ -160,7 +161,8 @@ public partial class Device
                        uint       objectId,    uint timeout,   out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.Locate;
@@ -258,7 +260,8 @@ public partial class Device
                          bool       bam,         byte partition, ulong identifier, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb     = new byte[16];
+        Span<byte> cdb = CdbBuffer[..16];
+        cdb.Clear();
         byte[] buffer  = [];
         byte[] idBytes = BitConverter.GetBytes(identifier);
 
@@ -348,7 +351,8 @@ public partial class Device
                       uint       blockSize, uint       timeout,     out double duration)
     {
         buffer = fixedLen ? new byte[blockSize * transferLen] : new byte[transferLen];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.Read6;
@@ -457,7 +461,8 @@ public partial class Device
                        ulong      objectId, uint       transferLen, uint objectSize, uint timeout,  out double duration)
     {
         buffer = fixedLen ? new byte[objectSize * transferLen] : new byte[transferLen];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
         byte[] idBytes = BitConverter.GetBytes(objectId);
 
@@ -503,7 +508,8 @@ public partial class Device
     public bool ReadBlockLimits(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration)
     {
         buffer = new byte[6];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ReadBlockLimits;
@@ -584,7 +590,8 @@ public partial class Device
                      _ => new byte[32]
                  };
 
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ReadPosition;
@@ -661,7 +668,8 @@ public partial class Device
                              uint       transferLen, uint       blockSize,   uint timeout,   out double duration)
     {
         buffer = fixedLen ? new byte[blockSize * transferLen] : new byte[transferLen];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ReadReverse;
@@ -806,7 +814,8 @@ public partial class Device
                               out double duration)
     {
         buffer = fixedLen ? new byte[objectSize * transferLen] : new byte[transferLen];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
         byte[] idBytes = BitConverter.GetBytes(objectId);
 
@@ -888,7 +897,8 @@ public partial class Device
                                     uint       transferLen, uint       blockSize,   uint timeout, out double duration)
     {
         buffer = fixedLen ? new byte[blockSize * transferLen] : new byte[transferLen];
-        byte[] cdb = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.RecoverBufferedData;
@@ -945,7 +955,8 @@ public partial class Device
                                      uint       timeout, out double duration)
     {
         buffer = new byte[256];
-        byte[] cdb = new byte[10];
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
         senseBuffer = new byte[64];
 
         cdb[0] = (byte)ScsiCommands.ReportDensitySupport;
@@ -1005,7 +1016,8 @@ public partial class Device
     public bool Rewind(out byte[] senseBuffer, bool immediate, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.Rewind;
@@ -1036,7 +1048,8 @@ public partial class Device
     public bool TrackSelect(out byte[] senseBuffer, byte track, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
 
         cdb[0] = (byte)ScsiCommands.TrackSelect;
@@ -1067,7 +1080,8 @@ public partial class Device
     public bool Space(out byte[] senseBuffer, SscSpaceCodes code, int count, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb    = new byte[6];
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
         byte[] buffer = [];
         byte[] countB = BitConverter.GetBytes(count);
 
diff --git a/Aaru.Devices/Device/ScsiCommands/SyQuest.cs b/Aaru.Devices/Device/ScsiCommands/SyQuest.cs
index dd1a43c72..35f2a55a2 100644
--- a/Aaru.Devices/Device/ScsiCommands/SyQuest.cs
+++ b/Aaru.Devices/Device/ScsiCommands/SyQuest.cs
@@ -30,6 +30,7 @@
 // Copyright © 2011-2025 Natalia Portillo
 // ****************************************************************************/
 
+using System;
 using Aaru.Logging;
 
 // ReSharper disable UnusedMember.Global
@@ -84,8 +85,9 @@ public partial class Device
                              bool       inhibitDma, bool readLong, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[6];
-        bool   sense;
+        Span<byte> cdb = CdbBuffer[..6];
+        cdb.Clear();
+        bool sense;
 
         cdb[0] = (byte)ScsiCommands.Read6;
         cdb[1] = (byte)((lba & 0x1F0000) >> 16);
@@ -170,8 +172,9 @@ public partial class Device
                               ushort transferLength, bool inhibitDma, bool readLong, uint timeout, out double duration)
     {
         senseBuffer = new byte[64];
-        byte[] cdb = new byte[10];
-        bool   sense;
+        Span<byte> cdb = CdbBuffer[..10];
+        cdb.Clear();
+        bool sense;
 
         cdb[0] = (byte)ScsiCommands.Read10;
         cdb[2] = (byte)((lba & 0xFF000000) >> 24);
diff --git a/Aaru.Devices/Linux/Command.cs b/Aaru.Devices/Linux/Command.cs
index 73957393a..6a5f193de 100644
--- a/Aaru.Devices/Linux/Command.cs
+++ b/Aaru.Devices/Linux/Command.cs
@@ -43,8 +43,8 @@ namespace Aaru.Devices.Linux;
 partial class Device
 {
     /// <inheritdoc />
-    public override int SendScsiCommand(byte[]        cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
-                                        ScsiDirection direction, out double duration, out bool sense)
+    public override unsafe int SendScsiCommand(Span<byte> cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
+                                               ScsiDirection direction, out double duration, out bool sense)
     {
         // We need a timeout
         if(timeout == 0) timeout = Timeout > 0 ? Timeout : 15;
@@ -74,13 +74,12 @@ partial class Device
         ioHdr.dxfer_direction = dir;
         ioHdr.dxfer_len       = (uint)buffer.Length;
         ioHdr.dxferp          = Marshal.AllocHGlobal(buffer.Length);
-        ioHdr.cmdp            = Marshal.AllocHGlobal(cdb.Length);
+        ioHdr.cmdp            = (IntPtr)CdbPtr;
         ioHdr.sbp             = Marshal.AllocHGlobal(senseBuffer.Length);
         ioHdr.timeout         = timeout * 1000;
         ioHdr.flags           = (uint)SgFlags.DirectIo;
 
         Marshal.Copy(buffer,      0, ioHdr.dxferp, buffer.Length);
-        Marshal.Copy(cdb,         0, ioHdr.cmdp,   cdb.Length);
         Marshal.Copy(senseBuffer, 0, ioHdr.sbp,    senseBuffer.Length);
 
         var cmdStopWatch = new Stopwatch();
@@ -91,7 +90,6 @@ partial class Device
         if(error < 0) error = Marshal.GetLastWin32Error();
 
         Marshal.Copy(ioHdr.dxferp, buffer,      0, buffer.Length);
-        Marshal.Copy(ioHdr.cmdp,   cdb,         0, cdb.Length);
         Marshal.Copy(ioHdr.sbp,    senseBuffer, 0, senseBuffer.Length);
 
         sense |= (ioHdr.info & SgInfo.OkMask) != SgInfo.Ok;
@@ -99,12 +97,12 @@ partial class Device
         duration = ioHdr.duration > 0 ? ioHdr.duration : cmdStopWatch.Elapsed.TotalMilliseconds;
 
         Marshal.FreeHGlobal(ioHdr.dxferp);
-        Marshal.FreeHGlobal(ioHdr.cmdp);
         Marshal.FreeHGlobal(ioHdr.sbp);
 
         return error;
     }
 
+
     /// <summary>Converts ATA protocol to SG_IO direction</summary>
     /// <param name="protocol">ATA protocol</param>
     /// <returns>SG_IO direction</returns>
@@ -138,7 +136,7 @@ partial class Device
 
         if(buffer == null) return -1;
 
-        var cdb = new byte[16];
+        byte[] cdb = new byte[16];
         cdb[0] = (byte)ScsiCommands.AtaPassThrough16;
         cdb[1] = (byte)((byte)protocol << 1 & 0x1E);
 
@@ -203,7 +201,7 @@ partial class Device
 
         if(buffer == null) return -1;
 
-        var cdb = new byte[16];
+        byte[] cdb = new byte[16];
         cdb[0] = (byte)ScsiCommands.AtaPassThrough16;
         cdb[1] = (byte)((byte)protocol << 1 & 0x1E);
 
@@ -268,7 +266,7 @@ partial class Device
 
         if(buffer == null) return -1;
 
-        var cdb = new byte[16];
+        byte[] cdb = new byte[16];
         cdb[0] =  (byte)ScsiCommands.AtaPassThrough16;
         cdb[1] =  (byte)((byte)protocol << 1 & 0x1E);
         cdb[1] |= 0x01;
@@ -451,17 +449,17 @@ partial class Device
         sense    = false;
 
         // Create array for buffers
-        var bufferPointers = new nint[commands.Length];
+        IntPtr[] bufferPointers = new nint[commands.Length];
 
         // Allocate memory for the array for commands
-        var ioMultiCmd = new byte[sizeof(ulong) + Marshal.SizeOf<MmcIocCmd>() * commands.Length];
+        byte[] ioMultiCmd = new byte[sizeof(ulong) + Marshal.SizeOf<MmcIocCmd>() * commands.Length];
 
         // First value of array is uint64 with count of commands
         Array.Copy(BitConverter.GetBytes((ulong)commands.Length), 0, ioMultiCmd, 0, sizeof(ulong));
 
         int off = sizeof(ulong);
 
-        for(var i = 0; i < commands.Length; i++)
+        for(int i = 0; i < commands.Length; i++)
         {
             // Create command
             var ioCmd = new MmcIocCmd();
@@ -521,9 +519,9 @@ partial class Device
         Marshal.Copy(ioMultiCmdPtr, ioMultiCmd, 0, ioMultiCmd.Length);
 
         // TODO: Use real pointers this is too slow
-        for(var i = 0; i < commands.Length; i++)
+        for(int i = 0; i < commands.Length; i++)
         {
-            var tmp = new byte[Marshal.SizeOf<MmcIocCmd>()];
+            byte[] tmp = new byte[Marshal.SizeOf<MmcIocCmd>()];
 
             // Copy command to managed space
             Array.Copy(ioMultiCmd, off, tmp, 0, tmp.Length);
@@ -623,7 +621,7 @@ partial class Device
             resultSize = result;
         }
 
-        var resultString = new byte[resultSize];
+        byte[] resultString = new byte[resultSize];
         Marshal.Copy(buf, resultString, 0, resultSize);
         Marshal.FreeHGlobal(buf);
 
diff --git a/Aaru.Devices/Linux/Device.cs b/Aaru.Devices/Linux/Device.cs
index 32b652cdb..9f17c353a 100644
--- a/Aaru.Devices/Linux/Device.cs
+++ b/Aaru.Devices/Linux/Device.cs
@@ -219,8 +219,8 @@ partial class Device : Devices.Device
 
                         var usbFs = new FileStream(resolvedLink + "/descriptors", FileMode.Open, FileAccess.Read);
 
-                        var usbBuf   = new byte[65536];
-                        int usbCount = usbFs.EnsureRead(usbBuf, 0, 65536);
+                        byte[] usbBuf   = new byte[65536];
+                        int    usbCount = usbFs.EnsureRead(usbBuf, 0, 65536);
                         dev.UsbDescriptors = new byte[usbCount];
                         Array.Copy(usbBuf, 0, dev.UsbDescriptors, 0, usbCount);
                         usbFs.Close();
@@ -388,8 +388,8 @@ partial class Device : Devices.Device
 
             var cisFs = new FileStream(possibleDir + "/cis", FileMode.Open, FileAccess.Read);
 
-            var cisBuf   = new byte[65536];
-            int cisCount = cisFs.EnsureRead(cisBuf, 0, 65536);
+            byte[] cisBuf   = new byte[65536];
+            int    cisCount = cisFs.EnsureRead(cisBuf, 0, 65536);
             dev.Cis = new byte[cisCount];
             Array.Copy(cisBuf, 0, dev.Cis, 0, cisCount);
             cisFs.Close();
diff --git a/Aaru.Devices/Remote/Command.cs b/Aaru.Devices/Remote/Command.cs
index df5ef7c1c..015f8029f 100644
--- a/Aaru.Devices/Remote/Command.cs
+++ b/Aaru.Devices/Remote/Command.cs
@@ -41,7 +41,7 @@ namespace Aaru.Devices.Remote;
 public partial class Device
 {
     /// <inheritdoc />
-    public override int SendScsiCommand(byte[]        cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
+    public override int SendScsiCommand(Span<byte>    cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
                                         ScsiDirection direction, out double duration, out bool sense)
     {
         // We need a timeout
@@ -194,7 +194,7 @@ public partial class Device
         if(_remote.ServerProtocolVersion >= 2)
             return _remote.SendMultipleMmcCommands(commands, out duration, out sense, timeout);
 
-        var error = 0;
+        int error = 0;
         duration = 0;
         sense    = false;
 
diff --git a/Aaru.Devices/Remote/Remote.cs b/Aaru.Devices/Remote/Remote.cs
index 8e00f6d29..a9a0dcb7e 100644
--- a/Aaru.Devices/Remote/Remote.cs
+++ b/Aaru.Devices/Remote/Remote.cs
@@ -522,7 +522,7 @@ public class Remote : IDisposable
     ///     <c>True</c> if SCSI command returned non-OK status and <paramref name="senseBuffer" /> contains
     ///     SCSI sense
     /// </param>
-    public int SendScsiCommand(byte[]        cdb,       ref byte[] buffer,   out byte[] senseBuffer, uint timeout,
+    public int SendScsiCommand(Span<byte>    cdb,       ref byte[] buffer,   out byte[] senseBuffer, uint timeout,
                                ScsiDirection direction, out double duration, out bool   sense)
     {
         senseBuffer = null;
@@ -553,7 +553,11 @@ public class Remote : IDisposable
 
         Array.Copy(pktBuf, 0, buf, 0, Marshal.SizeOf<AaruPacketCmdScsi>());
 
-        if(cdb != null) Array.Copy(cdb, 0, buf, Marshal.SizeOf<AaruPacketCmdScsi>(), cmdPkt.cdb_len);
+        if(cdb != null)
+        {
+            byte[] cdbArray = cdb.ToArray();
+            Array.Copy(cdbArray, 0, buf, Marshal.SizeOf<AaruPacketCmdScsi>(), cmdPkt.cdb_len);
+        }
 
         if(buffer != null)
             Array.Copy(buffer, 0, buf, Marshal.SizeOf<AaruPacketCmdScsi>() + cmdPkt.cdb_len, cmdPkt.buf_len);
diff --git a/Aaru.Devices/Windows/Command.cs b/Aaru.Devices/Windows/Command.cs
index 352db3877..c520ce250 100644
--- a/Aaru.Devices/Windows/Command.cs
+++ b/Aaru.Devices/Windows/Command.cs
@@ -44,7 +44,7 @@ namespace Aaru.Devices.Windows;
 partial class Device
 {
     /// <inheritdoc />
-    public override int SendScsiCommand(byte[]        cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
+    public override int SendScsiCommand(Span<byte>    cdb, ref byte[] buffer, out byte[] senseBuffer, uint timeout,
                                         ScsiDirection direction, out double duration, out bool sense)
     {
         // We need a timeout
@@ -80,10 +80,10 @@ partial class Device
 
         sptdSb.sptd.Length          = (ushort)Marshal.SizeOf(sptdSb.sptd);
         sptdSb.sptd.SenseInfoOffset = (uint)Marshal.SizeOf(sptdSb.sptd);
-        Array.Copy(cdb, sptdSb.sptd.Cdb, cdb.Length);
+        cdb.CopyTo(sptdSb.sptd.Cdb);
 
         uint k     = 0;
-        var  error = 0;
+        int  error = 0;
 
         Marshal.Copy(buffer, 0, sptdSb.sptd.DataBuffer, buffer.Length);
 
@@ -173,7 +173,7 @@ partial class Device
         aptd.AtaFlags |= AtaFlags.DrdyRequired;
 
         uint k     = 0;
-        var  error = 0;
+        int  error = 0;
 
         Marshal.Copy(buffer, 0, aptd.DataBuffer, buffer.Length);
 
@@ -268,7 +268,7 @@ partial class Device
         aptd.AtaFlags |= AtaFlags.DrdyRequired;
 
         uint k     = 0;
-        var  error = 0;
+        int  error = 0;
 
         Marshal.Copy(buffer, 0, aptd.DataBuffer, buffer.Length);
 
@@ -372,7 +372,7 @@ partial class Device
         aptd.AtaFlags |= AtaFlags.DrdyRequired;
 
         uint k     = 0;
-        var  error = 0;
+        int  error = 0;
 
         Marshal.Copy(buffer, 0, aptd.DataBuffer, buffer.Length);
 
@@ -535,17 +535,18 @@ partial class Device
 
         if(flags.HasFlag(MmcFlags.ResponseR6)) commandDescriptor.responseType = SdResponseType.R6;
 
-        var commandB = new byte[commandData.size + commandData.protocolArgumentSize + commandData.deviceDataBufferSize];
+        byte[] commandB =
+            new byte[commandData.size + commandData.protocolArgumentSize + commandData.deviceDataBufferSize];
 
         Array.Copy(buffer, 0, commandB, commandData.size + commandData.protocolArgumentSize, buffer.Length);
         IntPtr hBuf = Marshal.AllocHGlobal(commandB.Length);
         Marshal.StructureToPtr(commandData, hBuf, true);
-        var descriptorOffset = IntPtr.Add(hBuf, commandData.size);
+        IntPtr descriptorOffset = IntPtr.Add(hBuf, commandData.size);
         Marshal.StructureToPtr(commandDescriptor, descriptorOffset, true);
         Marshal.Copy(hBuf, commandB, 0, commandB.Length);
         Marshal.FreeHGlobal(hBuf);
 
-        var error = 0;
+        int error = 0;
         cmdStopwatch.Restart();
 
         sense = !Extern.DeviceIoControl(_fileHandle,
@@ -577,7 +578,7 @@ partial class Device
         // We need a timeout
         if(timeout == 0) timeout = Timeout > 0 ? Timeout : 15;
 
-        var error = 0;
+        int error = 0;
         duration = 0;
         sense    = false;