Maximum reading speed

Interpretation

Maximum reading speed refers to the maximum optical drive speed that optical storage products can achieve when reading CD-ROM discs. Because it is for CD-ROM discs, the speed is rated at the double speed of CD-ROM, not the double speed of DVD-ROM.

Working principle

The maximum CD reading speed that CD-ROM can reach is 56 times faster; DVD-ROM reading CD-ROM speed is slightly lower, reaching 52 times speed There are still relatively few products, most of which are 48 times speed; COMBO products basically reach 52 times speed. For a CD-ROM drive with 50 times speed, the theoretical data transfer rate should be: 150×50=7500K bytes/sec. In fact, the difference in the speed at which the CD-ROM drive reads the disk is not very important. This is because in the era of high-speed optical drives, all kinds of optical drives have made great progress in the speed of reading discs, and they are no longer a hindrance component in computer systems. Moreover, the nominal value of the high-speed optical drive is only the maximum speed of the outer ring under ideal conditions. In actual applications, this ideal state is not reached most of the time, and it is generally like a 24-speed. Therefore, whether it is a 36-speed, 40-speed or 50-speed optical drive, the actual use of the subjective feeling is not very different. Of course, a high-speed optical drive may be more advantageous, but it also has side effects such as high CPU usage, high noise, high vibration, high power consumption, and high heat generation. For some brands of optical drives, the high-speed varieties are not as good as the low-speed ones.

Summary

To sum up, we don’t have to demand the speed of the optical drive when purchasing an optical drive. If you are really embarrassed, I suggest that you still choose a lower speed optical drive, because its price is cheap and the performance is not too bad. However, only the high-speed optical drive (CD-ROM above 24 speed) can read the data of the CD-RW disc, and you should pay attention when purchasing the optical drive.