LITE-ON DVDRW SHM-165P6S read problem

Hi guys, i hope you can help me ive readed a little bit around in this forum but havent found a problem like this.
Look at the pic please what they are reading, the same problem on any dvd pressed or burned.

i have WinXP sp2
ASPI 4.60 (1021)
DMA is on !!

also i tried the unlocked firmwares from here same problem.
Please help me. :sad:

Is your Toshiba on the same channel as the LiteOn? If so, it’s UDMA-2 interface is hampering LiteOn’s performance. Pair the LiteOn up with the Pioneer as slave and try again if you want to keep the Toshiba on its own channel.

The Toshiba was on the same channel, i changed the cable and the LiteOn is now alone on a channel. Thanks for your help KTL. :flower: