diff --git a/DiscImageChef.Devices/Device/ScsiCommands/ArchiveCorp.cs b/DiscImageChef.Devices/Device/ScsiCommands/ArchiveCorp.cs
index f613a3d7..38c4ce63 100644
--- a/DiscImageChef.Devices/Device/ScsiCommands/ArchiveCorp.cs
+++ b/DiscImageChef.Devices/Device/ScsiCommands/ArchiveCorp.cs
@@ -41,6 +41,7 @@ namespace DiscImageChef.Devices
         /// </summary>
         /// <param name="buffer">Buffer.</param>
         /// <param name="senseBuffer">Sense buffer.</param>
+        /// <param name="lba">Address.</param>
         /// <param name="timeout">Timeout.</param>
         /// <param name="duration">Duration.</param>
         public bool ArchiveCorpRequestBlockAddress(out byte[] buffer, out byte[] senseBuffer, uint lba, uint timeout,
diff --git a/DiscImageChef.Devices/Device/ScsiCommands/Kreon.cs b/DiscImageChef.Devices/Device/ScsiCommands/Kreon.cs
index 3d1491d6..d4d5dc7f 100644
--- a/DiscImageChef.Devices/Device/ScsiCommands/Kreon.cs
+++ b/DiscImageChef.Devices/Device/ScsiCommands/Kreon.cs
@@ -215,6 +215,7 @@ namespace DiscImageChef.Devices
         /// <param name="timeout">Timeout.</param>
         /// <param name="duration">Duration.</param>
         /// <param name="buffer">The SS sector.</param>
+        /// <param name="requestNumber">Request number.</param>
         public bool KreonExtractSs(out byte[] buffer, out byte[] senseBuffer, uint timeout, out double duration,
                                    byte requestNumber = 0x00)
         {
diff --git a/DiscImageChef.Devices/Device/ScsiCommands/Plextor.cs b/DiscImageChef.Devices/Device/ScsiCommands/Plextor.cs
index 7167794a..a438482e 100644
--- a/DiscImageChef.Devices/Device/ScsiCommands/Plextor.cs
+++ b/DiscImageChef.Devices/Device/ScsiCommands/Plextor.cs
@@ -347,6 +347,7 @@ namespace DiscImageChef.Devices
         /// <returns><c>true</c>, if VariRec is supported, <c>false</c> otherwise.</returns>
         /// <param name="buffer">Buffer.</param>
         /// <param name="senseBuffer">Sense buffer.</param>
+        /// <param name="dvd">Set if request is for DVD.</param>
         /// <param name="timeout">Timeout.</param>
         /// <param name="duration">Duration.</param>
         public bool PlextorGetVariRec(out byte[] buffer, out byte[] senseBuffer, bool dvd, uint timeout,
@@ -466,6 +467,7 @@ namespace DiscImageChef.Devices
         /// <returns><c>true</c>, if DVD+ book bitsetting is supported, <c>false</c> otherwise.</returns>
         /// <param name="buffer">Buffer.</param>
         /// <param name="senseBuffer">Sense buffer.</param>
+        /// <param name="dualLayer">Set if bitset is for dual layer discs.</param>
         /// <param name="timeout">Timeout.</param>
         /// <param name="duration">Duration.</param>
         public bool PlextorGetBitsetting(out byte[] buffer, out byte[] senseBuffer, bool dualLayer, uint timeout,
diff --git a/DiscImageChef.Devices/Device/ScsiCommands/SPC.cs b/DiscImageChef.Devices/Device/ScsiCommands/SPC.cs
index 6834ae6f..8bcb0b68 100644
--- a/DiscImageChef.Devices/Device/ScsiCommands/SPC.cs
+++ b/DiscImageChef.Devices/Device/ScsiCommands/SPC.cs
@@ -725,8 +725,10 @@ namespace DiscImageChef.Devices
         /// <returns><c>true</c> if the command failed and <paramref name="senseBuffer"/> contains the sense buffer.</returns>
         /// <param name="buffer">Buffer with the data to be sent to the device</param>
         /// <param name="senseBuffer">Sense buffer.</param>
+        /// <param name="savePages">Set to save pages between resets.</param>
         /// <param name="timeout">Timeout in seconds.</param>
         /// <param name="duration">Duration in milliseconds it took for the device to execute the command.</param>
+        /// <param name="pageFormat">Set if page is formatted.</param>
         public bool ModeSelect(byte[] buffer, out byte[] senseBuffer, bool pageFormat, bool savePages, uint timeout,
                                out double duration)
         {
@@ -767,9 +769,11 @@ namespace DiscImageChef.Devices
         /// </summary>
         /// <returns><c>true</c> if the command failed and <paramref name="senseBuffer"/> contains the sense buffer.</returns>
         /// <param name="buffer">Buffer with the data to be sent to the device</param>
+        /// <param name="savePages">Set to save pages between resets.</param>
         /// <param name="senseBuffer">Sense buffer.</param>
         /// <param name="timeout">Timeout in seconds.</param>
         /// <param name="duration">Duration in milliseconds it took for the device to execute the command.</param>
+        /// <param name="pageFormat">Set if page is formatted.</param>
         public bool ModeSelect10(byte[] buffer, out byte[] senseBuffer, bool pageFormat, bool savePages, uint timeout,
                                  out double duration)
         {
diff --git a/DiscImageChef.Helpers/StringHandlers.cs b/DiscImageChef.Helpers/StringHandlers.cs
index 7f93ad32..356568b5 100644
--- a/DiscImageChef.Helpers/StringHandlers.cs
+++ b/DiscImageChef.Helpers/StringHandlers.cs
@@ -53,6 +53,8 @@ namespace DiscImageChef
         /// <returns>The corresponding C# string</returns>
         /// <param name="CString">A null-terminated (aka C string) byte array in the specified encoding</param>
         /// <param name="encoding">Encoding.</param>
+        /// <param name="twoBytes">Set if encoding uses 16-bit characters.</param>
+        /// <param name="start">Start decodint at this position</param>
         public static string CToString(byte[] CString, Encoding encoding, bool twoBytes = false, int start = 0)
         {
             if(CString == null) return null;
@@ -99,6 +101,7 @@ namespace DiscImageChef
         /// <returns>The corresponding C# string</returns>
         /// <param name="PascalString">A length-prefixed (aka Pascal string) ASCII byte array</param>
         /// <param name="encoding">Encoding.</param>
+        /// <param name="start">Start decodint at this position</param>
         public static string PascalToString(byte[] PascalString, Encoding encoding, int start = 0)
         {
             if(PascalString == null) return null;
@@ -135,6 +138,7 @@ namespace DiscImageChef
         /// <returns>The corresponding C# string</returns>
         /// <param name="SpacePaddedString">A space (' ', 0x20, ASCII SPACE) padded ASCII byte array</param>
         /// <param name="encoding">Encoding.</param>
+        /// <param name="start">Start decodint at this position</param>
         public static string SpacePaddedToString(byte[] SpacePaddedString, Encoding encoding, int start = 0)
         {
             if(SpacePaddedString == null) return null;