On 5 Mar 1997 09:46:56 GMT 
 opp@sunday.muffin.org (Oliver Paulzen) wrote:

 > But when I try to mount the device I get
 > opp@sunday:~% sudo mount -t cd9660 /dev/cd0a /cdrom
 > cd9660: Operation not supported by device

Looks like you don't have the cd9660 file system in the kernel...

Also, you'll want to use mount -t -o ro ... (read-only)

Jason R. Thorpe                                       thorpej@nas.nasa.gov
NASA Ames Research Center                               Home: 408.866.1912
NAS: M/S 258-6                                          Work: 415.604.0935
Moffett Field, CA 94035                                Pager: 415.428.6939