On Wed, 06 Aug 2003, Rohit wrote:
Has anyone observed this before? My Samsung 348 DVD/CD-rw combo driver works flawlessly on Windows. Copying, CD-writing etc all works just fine. What pains is that accessing the drive in Linux causes regular read-errors. If I am playing a file/avi in mplayer, mplayer aborts. If I try to copy it in Linux, the file copy operation aborts. The same is done fantastically in Windows.
Got a new UDMA motherboard last year and started getting burn problems with CD-RW ide-scsi emulation that I never had before (with the same drive and same Linux on my old slow EIDE motherboard.) No consistent error messages, tried lots of different CD-R and CD-RW blanks So I had to disable UDMA on the CD-RW to get it to burn using hdparm -d1 X34 /dev/hdc which I put in /etc/init.d/boot.local (the LSB script for local admins to edit which executes immediately after booting.) Worked flawlessly since then. X34 might not be right for your drive. Sadly I don't know where if anywhere I documented my reasoning. AFAIR the docs for hdparm give most of the info you need, but there may be a more specific howto somewhere that googling might bring up. Hope this helps. David