Table 323

+========-======================================================================+ 
|Density |                      Optical media                                   | 
| code   |                                                                      | 
|--------+----------------------------------------------------------------------| 
|  00h   |Default density (currently mounted density)                           | 
|        |----------------------------------------------------------------------| 
|        | Diameter | Type|  Sector   | Tracks | Sides | Servo| Reference |Notes| 
|        | mm (in)  |     |   size    |        |       |      | standard  |     | 
|        |----------+-----+-----------+--------+-------+------+-----------+-----| 
|  01h   | 86 (3,5) | R/W | 512/1 024 | 12 500 |   1   |      |  660-D    | 1   | 
|  02h   | 89 (3,5) | R/W | 512/1 024 | 12 500 |   2   |      |  581-D    | 1   | 
|  03h   |130 (5,25)| R/W | 512/1 024 | 18 750 |   2   |  CS  |  607-I    | 1   | 
|  04h   |130 (5,25)| W-O | 512/1 024 | 30 000 |   2   |  SS  |  655-D    | 1,2 | 
|  05h   |130 (5,25)| W-O | 512/1 024 | 20 000 |   2   |  SS  |  659-D    | 1,3 | 
|  06h   |130 (5,25)| W-O | 512/1 024 | 18 750 |   2   |  CS  |  457-D    | 1   | 
|  07h   |200 (8,0) |     |           |        |       |      |  407-D    | 1,4 | 
|  08h   |300 (12,0)|     |   1 024   |        |   2   |      |  408-D    | 1,4 | 
|  09h   |356 (14,0)|     |   1 024   | 56 350 |   2   |      |  456-D    | 1   | 
|        |          |     |           |        |       |      |           |     | 
|-------------------------------------------------------------------------------| 
| Codes 80h - FFh are vendor-specific, all other codes are reserved             | 
|-------------------------------------------------------------------------------| 
|Key:    Type    Description                 Servo  Description                 | 
|        ----    -----------                 -----  ----------------            | 
|        R/W     Erasable                     CS    Continuous servo            | 
|        W-O     Write once                   SS    Sampled servo               | 
|        R/O     Read only                                                      | 
|-------------------------------------------------------------------------------| 
| NOTES                                                                         | 
|  1 The reference standard refers to an ANSI X3B11 project under               | 
| development.  The project may have several documents describing different     | 
| aspects of the media. Please contact the Secretariat for current information  | 
| on status and availability.                                                   | 
|  2 RZ modulation.                                                             | 
|  3 4/15 modulation.                                                           | 
|  4 This project is not presently active.                                      | 
+===============================================================================+