2.1 Optical Disk Drive Specifications
Table 2.2 Specifications (2 of 2)
Item |
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Optical disk cartridge | 128 MB media | 230 MB media | 540 MB media | 640 MB media | 1.3 GB media | 2.3 GB media | |
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Density | 24,424 bpi | 29,308 bpi | 52,900 bpi |
| 89,100 bpi | 112,474 bpi | |
| (1.04µm/bit) | (0.87µm/bit) | (0.48µm/bit) |
| (0.285µm/bit) | (0.228µm/bit) | |
| 15,875 tpi | 18,275 tpi | 23,090 tpi |
| 28,200 tpi | 37,910 tpi | |
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Loading time *3 |
| 8 sec. (typ) |
| 12 sec. (typ) | 14 sec. (typ) | ||
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Unloading time *4 |
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| 4 sec. (typ) |
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Load/unload life |
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| 20,000 |
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Host interface |
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| SCSI |
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Data Transfer Model and rates |
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| Asynchronous transfer | 5MB/s |
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| Synchronous transfer | 20MB/s |
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Data buffer |
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| 7,600 KB |
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Error correction *5 |
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| Correctable up to |
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| Bit error rate: |
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*1 The number of user tracks indicates the maximum user zone which includes the spare area and slipping area.
*2 Mathematical average of 1,000 times of seek and does not include command overhead nor track address recognition time. Furthermore, it may depend on the quality of media and drive installation environment.
*3 Loading time is the time from when the optical disk cartridge is inserted to when the optical disk drive is ready.
*4 Unloading time is the time from when the eject button is pressed or the eject command is issued to when the optical disk cartridge is ejected.
*5 The bit error rate must be