Other Help Topics :: unable to access CD/DVD after boot

I have successfully done a HD install from the DSL Book CD. Machine is HP Pavilion N3390 laptop; 512K; 30Gb HD; D-Link wireless PCMCIA card.
The wireless is working fine, desktop and all apps seem to be okay, but: I can't read the CD/DVD using "Emelfm". Puzzling, since it was the install device. I found a line in the "System Stats"/'dmesg' near the end: <3>sr0: CDROM (ioctl) reports ILLEGAL REQUEST. <6>cdrom: open failed. I have tried adding "dma" and "nodma" to the boot command line.
I was unable to use the CD/DVD when I did the liveCD boot, however, I could read the contents of the DSL CD in the drive. I can play music CDs with xMMs and see the track labels. !!
Anything I can add to the boot command line to get access to the CD/DVD? Or is there another way to access the CD/DVD?

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