Table 253

+=====-========-========-========-========-========-========-========-========+ 
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    | 
|Byte |        |        |        |        |        |        |        |        | 
|=====+=======================================================================| 
|     |                        Sub-channel data header                        | 
|=====+=======================================================================| 
| 0   |                                Reserved                               | 
|-----+-----------------------------------------------------------------------| 
| 1   |                              Audio status                             | 
|-----+-----------------------------------------------------------------------| 
| 2   | (MSB)                                                                 | 
|-----+---                     Sub-channel data length                     ---| 
| 3   |                                                                 (LSB) | 
|=====+=======================================================================| 
|     |                        Sub-Q channel data block                       | 
|=====+=======================================================================| 
| 4   |                    Sub channel data format code (00h)                 | 
|-----+-----------------------------------------------------------------------| 
| 5   |                ADR                |             Control               | 
|-----+-----------------------------------------------------------------------| 
| 6   |                             Track number                              | 
|-----+-----------------------------------------------------------------------| 
| 7   |                             Index number                              | 
|-----+-----------------------------------------------------------------------| 
| 8   | (MSB)                                                                 | 
|- - -+---                     Absolute CD-ROM address                     ---| 
| 11  |                                                                 (LSB) | 
|--- -+-----------------------------------------------------------------------| 
| 12  | (MSB)                                                                 | 
|- - -+---                  Track relative CD-ROM address                  ---| 
| 15  |                                                                 (LSB) | 
|--- -+-----------------------------------------------------------------------| 
| 16  |  MCVal |                       Reserved                               | 
|--- -+-----------------------------------------------------------------------| 
| 17  | (MSB)                                                                 | 
|- - -+---                Media catalogue number (UPC/Bar code)            ---| 
| 31  |                                                                 (LSB) | 
|--- -+-----------------------------------------------------------------------| 
| 32  |  TCVal |                       Reserved                               | 
|--- -+-----------------------------------------------------------------------| 
| 33  | (MSB)                                                                 | 
|- - -+---        Track international standard recording code (ISRC)       ---| 
| 47  |                                                                 (LSB) | 
+=============================================================================+