About this:
/dev/cdrom -->/dev/sr0 I'm banking that you have the ide-scsi module loaded and therefore it is a quasi scsi device. So, the problem is the hparm will not interact with this, such is the case on my system.
My DVD/CDRW in the master on IDE2 (/dev/hdc), but it is recognized by suse as /dev/sr0, I have /dev/cdrom pointing to /dev/sr0... and still, if I do hdparm -d1 /dev/hdc, DMA gets activated for that drive... go figure! By doing this, I activate DMA on my DVD (even if YasT/SuSE recognices it as scsi), and my DVD movies play perfectly!... with Xine. I still do not know if this screws CD burning, since I have no tried it, so I just turn DMA off after watching a movie with hdparm -d0 /dev/hdc. __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com