Disc typeReading speedWriting speed (*)
CD-ROM24x-
CD-R24x24x
CD-RW24x24x
DVD-ROM SL8x-
DVD-ROM DL8x (?)-
DVD-R8x8x
DVD-RW8x6x
DVD+R8x8x
DVD+RW8x8x
DVD-R DL8x (?)4x
DVD+R DL8x (?)4x

(*) max. speed can only be achieved on certain discs

In addition to the Optiarc AD5540A, the ND5543A also features LabelFlash technology.