|
Parameter |
Value |
Comments |
| Diameter: | 12 (or 8) cm | 8 cm CDs have not been successful |
| Thickness: | 1.2 mm | Tolerance of +0.3, -0.1 mm |
| Width of pits: | 0.5 microns | |
| Length of pits: | 0.8 to 3 microns | Depends on data stored |
| Depth of pits: | 0.15 microns | |
| Scan velocity: | 1.3 m/s | Tolerance +/- 0.1 m/s |
| Track pitch: | 1.6 microns | Tolerance +/- 0.1 microns |
| Laser wavelength: | 770 to 830 nm | Typically 780 nm |
| Playing time: | 74 mins 44 secs | Playing times can be longer |
| Number of tracks: | 99 max | Can use indexes to subdivide tracks |
| Modulation | EFM | 8 to 14 bits plus 3 merging bits |
| Channel bit rate: | 4.3218 Mb/s | Actual raw data rate |
