DVD-Rom cannot rea DVD's but CD's

[Buro]

My System ist a xw8600 with Red Hat Linux 5 with Workstation Option. It has a da HP DVD-ROM SATA Drive and a HP DVD+/-RW SuperMulti SATA Drive.
The ROM-Drive can read CD's but not DVD. It says there is no media by executing a mount command and using a DVD. CD' are automatically mounted.
The DVD-RW-Drive works fine with both CD and DVD. What might be the reason for this. Driver Problem or Hardware Malfunction?

[Steven E. Protter · Accepted solution]

Shalom,

More than likely the driver for this ROM drive chosen by Linux doesn't fully support the hardware.

The best way to go is see if there is a better hardware driver from the manufacturer. Also using Red Hat 5 update 2 might help.

SEP