Table D.2

+=============================================================================+ 
|           D - DIRECT ACCESS DEVICE                       Device column key  | 
|           .T - SEQUENTIAL ACCESS DEVICE                  M = Mandatory      | 
|           . L - PRINTER DEVICE                           O = Optional       | 
|           .  P - PROCESSOR DEVICE                        V = Vendor-specific| 
|           .  .W - WRITE ONCE READ MULTIPLE DEVICE        R = Reserved       | 
|           .  . R - READ ONLY (CD-ROM) DEVICE                                | 
|           .  .  S - SCANNER DEVICE                                          | 
|           .  .  .O - OPTICAL MEMORY DEVICE                                  | 
|           .  .  . M - MEDIA CHANGER DEVICE                                  | 
|           .  .  .  C - COMMUNICATION DEVICE                                 | 
|           .  .  .  .                                                        | 
|        OP DTLPWRSOMC Description                                            | 
|----------+----------+-------------------------------------------------------| 
|        00 MMMMMMMMMM TEST UNIT READY                                        | 
|        01  M         REWIND                                                 | 
|        01 O V OO OO  REZERO UNIT                                            | 
|        02 VVVVVV  V                                                         | 
|        03 MMMMMMMMMM REQUEST SENSE                                          | 
|        04   O        FORMAT                                                 | 
|        04 M      O   FORMAT UNIT                                            | 
|        05 VMVVVV  V  READ BLOCK LIMITS                                      | 
|        06 VVVVVV  V                                                         | 
|        07         O  INITIALIZE ELEMENT STATUS                              | 
|        07 OVV O  OV  REASSIGN BLOCKS                                        | 
|        08          M GET MESSAGE(06)                                        | 
|        08 OMV OO OV  READ(06)                                               | 
|        08    O       RECEIVE                                                | 
|        09 VVVVVV  V                                                         | 
|        0A   M        PRINT                                                  | 
|        0A          M SEND MESSAGE(06)                                       | 
|        0A    M       SEND(06)                                               | 
|        0A OM  O  OV  WRITE(06)                                              | 
|        0B O   OO OV  SEEK(06)                                               | 
|        0B   O        SLEW AND PRINT                                         | 
|        0C VVVVVV  V                                                         | 
|        0D VVVVVV  V                                                         | 
|        0E VVVVVV  V                                                         | 
|        0F VOVVVV  V  READ REVERSE                                           | 
|        10   O O      SYNCHRONIZE BUFFER                                     | 
|        10 VM VVV     WRITE FILEMARKS                                        | 
|        11 VMVVVV     SPACE                                                  | 
|        12 MMMMMMMMMM INQUIRY                                                | 
|        13 VOVVVV     VERIFY(06)                                             | 
|        14 VOOVVV     RECOVER BUFFERED DATA                                  | 
|        15 OMO OOOOOO MODE SELECT(06)                                        | 
|        16 M   MM MO  RESERVE                                                | 
|        16  MM   M    RESERVE UNIT                                           | 
|        17 M   MM MO  RELEASE                                                | 
|        17  MM   M    RELEASE UNIT                                           | 
|        18 OOOOOOOO   COPY                                                   | 
|        19 VMVVVV     ERASE                                                  | 
|        1A OMO OOOOOO MODE SENSE(06)                                         | 
|        1B  O         LOAD UNLOAD                                            | 
|        1B       O    SCAN                                                   | 
|        1B   O        STOP PRINT                                             | 
|        1B O   OO O   STOP START UNIT                                        | 
|        1C OOOOOOOOOO RECEIVE DIAGNOSTIC RESULTS                             | 
|        1D MMMMMMMMMM SEND DIAGNOSTIC                                        | 
|        1E OO  OO OO  PREVENT ALLOW MEDIUM REMOVAL                           | 
|        1F                                                                   | 
|        20 V   VV V                                                          | 
|        21 V   VV V                                                          | 
|        22 V   VV V                                                          | 
|        23 V   VV V                                                          | 
|        24 V   VVM    SET WINDOW                                             | 
|        25       O    GET WINDOW                                             | 
|        25 M   M  M   READ CAPACITY                                          | 
|        25      M     READ CD-ROM CAPACITY                                   | 
|        26 V   VV                                                            | 
|        27 V   VV                                                            | 
|        28          O GET MESSAGE(10)                                        | 
|        28 M   MMMM   READ(10)                                               | 
|        29 V   VV O   READ GENERATION                                        | 
|        2A          O SEND MESSAGE(10)                                       | 
|        2A       O    SEND(10)                                               | 
|        2A O   M  M   WRITE(10)                                              | 
|        2B  O         LOCATE                                                 | 
|        2B         O  POSITION TO ELEMENT                                    | 
|        2B O   OO O   SEEK(10)                                               | 
|        2C V      O   ERASE(10)                                              | 
|        2D V   O  O   READ UPDATED BLOCK                                     | 
|        2E O   O  O   WRITE AND VERIFY(10)                                   | 
|        2F O   OO O   VERIFY(10)                                             | 
|        30 O   OO O   SEARCH DATA HIGH(10)                                   | 
|        31       O    OBJECT POSITION                                        | 
|        31 O   OO O   SEARCH DATA EQUAL(10)                                  | 
|        32 O   OO O   SEARCH DATA LOW(10)                                    | 
|        33 O   OO O   SET LIMITS(10)                                         | 
|        34       O    GET DATA BUFFER STATUS                                 | 
|        34 O   OO O   PRE-FETCH                                              | 
|        34  O         READ POSITION                                          | 
|        35 O   OO O   SYNCHRONIZE CACHE                                      | 
|        36 O   OO O   LOCK UNLOCK CACHE                                      | 
|        37 O      O   READ DEFECT DATA(10)                                   | 
|        38     O  O   MEDIUM SCAN                                            | 
|        39 OOOOOOOO   COMPARE                                                | 
|        3A OOOOOOOO   COPY AND VERIFY                                        | 
|        3B OOOOOOOOOO WRITE BUFFER                                           | 
|        3C OOOOOOOOOO READ BUFFER                                            | 
|        3D     O  O   UPDATE BLOCK                                           | 
|        3E O   OO O   READ LONG                                              | 
|        3F O   O  O   WRITE LONG                                             | 
|        40 OOOOOOOOOO CHANGE DEFINITION                                      | 
|        41 O          WRITE SAME                                             | 
|        42      O     READ SUB-CHANNEL                                       | 
|        43      O     READ TOC                                               | 
|        44      O     READ HEADER                                            | 
|        45      O     PLAY AUDIO(10)                                         | 
|        46                                                                   | 
|        47      O     PLAY AUDIO MSF                                         | 
|        48      O     PLAY AUDIO TRACK INDEX                                 | 
|        49      O     PLAY TRACK RELATIVE(10)                                | 
|        4A                                                                   | 
|        4B      O     PAUSE RESUME                                           | 
|        4C OOOOOOOOOO LOG SELECT                                             | 
|        4D OOOOOOOOOO LOG SENSE                                              | 
|        4E                                                                   | 
|        4F                                                                   | 
|        50                                                                   | 
|        51                                                                   | 
|        52                                                                   | 
|        53                                                                   | 
|        54                                                                   | 
|        55 OOO OOOOOO MODE SELECT(10)                                        | 
|        56                                                                   | 
|        57                                                                   | 
|        58                                                                   | 
|        59                                                                   | 
|        5A OOO OOOOOO MODE SENSE(10)                                         | 
|        5B                                                                   | 
|        5C                                                                   | 
|        5D                                                                   | 
|        5E                                                                   | 
|        5F                                                                   | 
|        A0                                                                   | 
|        A1                                                                   | 
|        A2                                                                   | 
|        A3                                                                   | 
|        A4                                                                   | 
|        A5         M  MOVE MEDIUM                                            | 
|        A5      O     PLAY AUDIO(12)                                         | 
|        A6         O  EXCHANGE MEDIUM                                        | 
|        A7                                                                   | 
|        A8          O GET MESSAGE(12)                                        | 
|        A8     OO O   READ(12)                                               | 
|        A9      O     PLAY TRACK RELATIVE(12)                                | 
|        AA          O SEND MESSAGE(12)                                       | 
|        AA     O  O   WRITE(12)                                              | 
|        AB                                                                   | 
|        AC        O   ERASE(12)                                              | 
|        AD                                                                   | 
|        AE     O  O   WRITE AND VERIFY(12)                                   | 
|        AF     OO O   VERIFY(12)                                             | 
|        B0     OO O   SEARCH DATA HIGH(12)                                   | 
|        B1     OO O   SEARCH DATA EQUAL(12)                                  | 
|        B2     OO O   SEARCH DATA LOW(12)                                    | 
|        B3     OO O   SET LIMITS(12)                                         | 
|        B4                                                                   | 
|        B5                                                                   | 
|        B5         O  REQUEST VOLUME ELEMENT ADDRESS                         | 
|        B6                                                                   | 
|        B6         O  SEND VOLUME TAG                                        | 
|        B7        O   READ DEFECT DATA(12)                                   | 
|        B8                                                                   | 
|        B8         O  READ ELEMENT STATUS                                    | 
|        B9                                                                   | 
|        BA                                                                   | 
|        BB                                                                   | 
|        BC                                                                   | 
|        BD                                                                   | 
|        BE                                                                   | 
|        BF                                                                   | 
+=============================================================================+