Pöörlemiskiirus. seadmele märgitud kordsus (näit. 24x, 32x) näitab, mitu korda on selle maksimaalne ülekandekiirus suurem kui audio-CD (heliplaadi) puhul, mis on 150 KB/s.
Subheading 8471 70 51 shall also apply to CD-ROM drives, being storage units for automatic data processing machines, which consists of drive units designed for retrieving the signals from CD-ROMs, audio CDs and photo CDs and equipped with a jack of earphones, a volume-control button or a start/stop button.
