Question: What does two-speed or 4-speed mean?
Answer: Single-speed is the speed with which a CD plays in a conventional music CD player. The speed rating refers to the maximum transfer rate of the drive. For each number, multiply by 150 kB/s to calculate this.
E.g. two-speed = 2*150 = 300 kB/s E.g. eight-speed = 8*150 = 1.2 MB/s
Note: this speed is the maximum transfer rate. Much time will be added on when jumping to new positions on the disc. If you are copying many files, expect the average transfer rate to be significantly lower. Also, the speed of your SCSI bus could be a bottleneck. If your SCSI interface supports a maximum transfer rate of 1.5 MB/s, don't expect a 32-speed drive to exceed this value!
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