| Opcode | Definintion |
| 0x 00 | Test Unit Ready |
| 0x 01 | Rest Unit |
| 0x 03 | Request Sense |
| 0x 04 | Format Uinit |
| 0x 05 | Read block limites |
| 0x 07 | Reassign Blocks |
| 0x 08 | Read |
| 0x 0A | Write |
| 0x 0B | Seek |
| 0x 10 | Write file mark |
| 0x 11 | Space |
| 0x 12 | Inquiry |
| 0x 13 | Verify tape |
| 0x 15 | Mode Select |
| 0x 16 | Reserve |
| 0x 17 | Release |
| 0x 18 | Copy |
| 0x 19 | Erase (Tape) |
| 0x 1A | Mode Sense |
| 0x 1B | Start/Stop unit |
| 0x 1C | Receive Diagnostic |
| 0x 1D | Send Diagnostic |
| 0x 1E | Prevent-Allow Medium Removal |
| 0x 25 | Read Capacity |
| 0x 28 | Read extended |
| 0x 2A | Write extended |
| 0x 2B | Seek extended |
| 0x 2E | Write and verify |
| 0x 2F | Verify |
| 0x 37 | Read defect data |
| 0x 38 | Medium scan |
| 0x 3B | Write buffer |
| 0x 3C | Read Buffer |
| 0x 42 | Read sub channel |
| 0x 43 | Read TOC |
| 0x 44 | Read header |
| 0x 55 | Mode select extended |
| 0x 56 | Reserve unit exteded |
| 0x 57 | Release unit extended |
| 0x 5A | Mode sense extended |
| 0x 5E | Persistent reserve in |
| 0x 5F | Persistent reserve out |
| 0x 88 | Read 16 |
| 0x 8A | Write 16 |
| 0x 93 | Write and verify 16 |
| 0x 9E | Service action in |
| 0x 9F | Service action out |
| 0x A0 | Report luns |
| 0x EA | Write long |