Table 93

+=====-========-========-========-========-========-========-========-========+ 
|  Bit|   7    |   6    |   5    |   4    |   3    |   2    |   1    |   0    |
|Byte |        |        |        |        |        |        |        |        |
|=====+=======================================================================|
| 0   |                           Density code                                |
|-----+-----------------------------------------------------------------------|
| 1   | (MSB)                                                                 |
|-----+---                                                                 ---|
| 2   |                           Number of blocks                            |
|-----+---                                                                 ---|
| 3   |                                                                 (LSB) |
|-----+-----------------------------------------------------------------------|
| 4   |                           Reserved                                    |
|-----+-----------------------------------------------------------------------|
| 5   | (MSB)                                                                 |
|-----+---                                                                 ---|
| 6   |                           Block length                                |
|-----+---                                                                 ---|
| 7   |                                                                 (LSB) |
+=============================================================================+