diff --git a/DiscImageChef.Tests.Devices/SCSI/ArchiveCorp.cs b/DiscImageChef.Tests.Devices/SCSI/ArchiveCorp.cs
index d549262e..95c7f5b8 100644
--- a/DiscImageChef.Tests.Devices/SCSI/ArchiveCorp.cs
+++ b/DiscImageChef.Tests.Devices/SCSI/ArchiveCorp.cs
@@ -67,6 +67,12 @@ namespace DiscImageChef.Tests.Devices.SCSI
                     case 0:
                         DicConsole.WriteLine("Returning to SCSI commands menu...");
                         return;
+                    case 1:
+                        RequestBlockAddress(devPath, dev);
+                        continue;
+                    case 2:
+                        SeekBlock(devPath, dev);
+                        continue;
                     default:
                         DicConsole.WriteLine("Incorrect option. Press any key to continue...");
                         System.Console.ReadKey();
diff --git a/DiscImageChef.Tests.Devices/SCSI/Certance.cs b/DiscImageChef.Tests.Devices/SCSI/Certance.cs
index 5ac72032..90553b07 100644
--- a/DiscImageChef.Tests.Devices/SCSI/Certance.cs
+++ b/DiscImageChef.Tests.Devices/SCSI/Certance.cs
@@ -49,7 +49,8 @@ namespace DiscImageChef.Tests.Devices.SCSI
                 System.Console.Clear();
                 DicConsole.WriteLine("Device: {0}", devPath);
                 DicConsole.WriteLine("Send a Certance vendor command to the device:");
-                DicConsole.WriteLine("1.- Send PARK UNPARK command.");
+                DicConsole.WriteLine("1.- Send PARK command.");
+                DicConsole.WriteLine("2.- Send UNPARK command.");
                 DicConsole.WriteLine("0.- Return to SCSI commands menu.");
                 DicConsole.Write("Choose: ");
 
@@ -66,6 +67,12 @@ namespace DiscImageChef.Tests.Devices.SCSI
                     case 0:
                         DicConsole.WriteLine("Returning to SCSI commands menu...");
                         return;
+                    case 1:
+                        Park(devPath, dev);
+                        continue;
+                    case 2:
+                        Unpark(devPath, dev);
+                        continue;
                     default:
                         DicConsole.WriteLine("Incorrect option. Press any key to continue...");
                         System.Console.ReadKey();
@@ -73,5 +80,119 @@ namespace DiscImageChef.Tests.Devices.SCSI
                 }
             }
         }
+
+        static void Park(string devPath, Device dev)
+        {
+        start:
+            System.Console.Clear();
+            bool sense = dev.CertancePark(out byte[] senseBuffer, dev.Timeout, out double duration);
+
+        menu:
+            DicConsole.WriteLine("Device: {0}", devPath);
+            DicConsole.WriteLine("Sending PARK to the device:");
+            DicConsole.WriteLine("Command took {0} ms.", duration);
+            DicConsole.WriteLine("Sense is {0}.", sense);
+            DicConsole.WriteLine("Sense buffer is {0} bytes.", senseBuffer == null ? "null" : senseBuffer.Length.ToString());
+            DicConsole.WriteLine("Sense buffer is null or empty? {0}", ArrayHelpers.ArrayIsNullOrEmpty(senseBuffer));
+            DicConsole.WriteLine("PARK decoded sense:");
+            DicConsole.Write("{0}", Decoders.SCSI.Sense.PrettifySense(senseBuffer));
+            DicConsole.WriteLine();
+            DicConsole.WriteLine("Choose what to do:");
+            DicConsole.WriteLine("1.- Print sense buffer.");
+            DicConsole.WriteLine("2.- Send command again.");
+            DicConsole.WriteLine("0.- Return to Certance vendor commands menu.");
+            DicConsole.Write("Choose: ");
+
+            string strDev = System.Console.ReadLine();
+            if(!int.TryParse(strDev, out int item))
+            {
+                DicConsole.WriteLine("Not a number. Press any key to continue...");
+                System.Console.ReadKey();
+                System.Console.Clear();
+                goto menu;
+            }
+
+            switch(item)
+            {
+                case 0:
+                    DicConsole.WriteLine("Returning to Certance vendor commands menu...");
+                    return;
+                case 1:
+                    System.Console.Clear();
+                    DicConsole.WriteLine("Device: {0}", devPath);
+                    DicConsole.WriteLine("PARK sense:");
+                    if(senseBuffer != null)
+                        PrintHex.PrintHexArray(senseBuffer, 64);
+                    DicConsole.WriteLine("Press any key to continue...");
+                    System.Console.ReadKey();
+                    System.Console.Clear();
+                    DicConsole.WriteLine("Device: {0}", devPath);
+                    goto menu;
+                case 2:
+                    goto start;
+                default:
+                    DicConsole.WriteLine("Incorrect option. Press any key to continue...");
+                    System.Console.ReadKey();
+                    System.Console.Clear();
+                    goto menu;
+            }
+        }
+
+        static void Unpark(string devPath, Device dev)
+        {
+        start:
+            System.Console.Clear();
+            bool sense = dev.CertanceUnpark(out byte[] senseBuffer, dev.Timeout, out double duration);
+
+        menu:
+            DicConsole.WriteLine("Device: {0}", devPath);
+            DicConsole.WriteLine("Sending UNPARK to the device:");
+            DicConsole.WriteLine("Command took {0} ms.", duration);
+            DicConsole.WriteLine("Sense is {0}.", sense);
+            DicConsole.WriteLine("Sense buffer is {0} bytes.", senseBuffer == null ? "null" : senseBuffer.Length.ToString());
+            DicConsole.WriteLine("Sense buffer is null or empty? {0}", ArrayHelpers.ArrayIsNullOrEmpty(senseBuffer));
+            DicConsole.WriteLine("UNPARK decoded sense:");
+            DicConsole.Write("{0}", Decoders.SCSI.Sense.PrettifySense(senseBuffer));
+            DicConsole.WriteLine();
+            DicConsole.WriteLine("Choose what to do:");
+            DicConsole.WriteLine("1.- Print sense buffer.");
+            DicConsole.WriteLine("2.- Send command again.");
+            DicConsole.WriteLine("0.- Return to Certance vendor commands menu.");
+            DicConsole.Write("Choose: ");
+
+            string strDev = System.Console.ReadLine();
+            if(!int.TryParse(strDev, out int item))
+            {
+                DicConsole.WriteLine("Not a number. Press any key to continue...");
+                System.Console.ReadKey();
+                System.Console.Clear();
+                goto menu;
+            }
+
+            switch(item)
+            {
+                case 0:
+                    DicConsole.WriteLine("Returning to Certance vendor commands menu...");
+                    return;
+                case 1:
+                    System.Console.Clear();
+                    DicConsole.WriteLine("Device: {0}", devPath);
+                    DicConsole.WriteLine("UNPARK sense:");
+                    if(senseBuffer != null)
+                        PrintHex.PrintHexArray(senseBuffer, 64);
+                    DicConsole.WriteLine("Press any key to continue...");
+                    System.Console.ReadKey();
+                    System.Console.Clear();
+                    DicConsole.WriteLine("Device: {0}", devPath);
+                    goto menu;
+                case 2:
+                    goto start;
+                default:
+                    DicConsole.WriteLine("Incorrect option. Press any key to continue...");
+                    System.Console.ReadKey();
+                    System.Console.Clear();
+                    goto menu;
+            }
+        }
     }
 }