Paul Apprich [Mon, Apr 22, 2002 at 04:51:04PM -0400]:
>     I have a Pioneer DRM624X connected to a Compaq Deskpro 466 through a
> BusLogic BT747 SCSI host. Dmesg shows individual cdN (cd0-cd5) for all
> discs in the magazine (6). However, upon' mount_cd9660 /dev/cd0a' or
> 'cat /dev/rcd0a | hexdump -C' the response is "Operation not supported
> by device"

1) does dmesg show anything when you try to mount it?
2) is the disk in drive, when you try to mount it?
3) is an upgraded firmware available for your Pionieer? If "yes",
   please upgrade it and check if the problem persists.
   
Regards,   
-- 
/* Micha³ Pasternak, http://pasternak.w.lub.pl, +48606570000 */