ASUS DRW-24B1ST

The ASUS DRW-24B1LT / 24B1ST is capable of reading and writing data on DVD±R/±RW, DVDRAM formats. It is a power saving drive and allows you to permanently delete the data on rewritable discs. This provides you with flexibility and efficiency in terms of multimedia data storage and sharing.

asus-DRW-24B1ST

Read Speed

DVD+R : 16X
DVD-R : 16X
DVD+RW : 12X
DVD-RW : 12X
DVD-ROM : 16X
DVD+R(DL) : 12X
DVD-R(DL) : 12X
DVD-ROM(DL) : 12X
DVD-RAM : 12X
CD-R : 48X
CD-RW : 40X
CD-ROM : 48X
DVD Video Playback : 6X
VCD Playback : 16X
Audio CD Playback : 16X

Write Speed

DVD+R : 24X
DVD-R : 24X
DVD+RW : 8X
DVD-RW : 6X
DVD+R(DL) : 8X
DVD-R (DL) : 8X
DVD-RAM : 5X
CD-R : 48X
CD-RW : 24X

Actually it is DRW-24B1ST revision c, which I got through Nero Info Tool 6.

nero-info-tool

Firmware 1.05, it is higher than the one on official site.