kernel freeze when mounting dvd

I'm running FC2 with kernel 2.6.5. When I try to mount DVD disks my system freezes. Mounting CDs works just fine. DVD works OK on Windows. After freeze there are no messages in the logs, however if I do it in runlevel 3 I see an endless loop of printk's running on the screen saying something about not being able to read some block. I can't cat-n-paste the message because it does not go to any log. And I don't use SCSI emulation, I just mount it as /dev/hdd. My DVD drive is LITE-ON DVDRW SOHW-812S.

Any ideas ? Thanks .

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