When checking dmseg, do you get indication that the CD/DVD is detected? The output on my system on a DVD I had just ripped looks like this:
Code:
dmesg | tail -n5
[ 44.413902] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 47.418788] skge 0000:01:09.0 eth0: Link is up at 100 Mbps, full duplex, flow control both
[ 47.418828] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 85.010541] UDF-fs: INFO Mounting volume 'AFTER_EARTH', timestamp 2013/08/16 23:00 (1e5c)
[ 1983.965911] UDF-fs: INFO Mounting volume 'AFTER_EARTH', timestamp 2013/08/16 23:00 (1e5c)