hi there, running mdk 9.0, kernel is: 2.4.19-16
i've brought a dvd/cdrw combo rom: Liteon 48x24x48x cd-rw & 16x dvd-rom combo drive
interface of the combo rom is: ATAPI/E-IDE

linux recongize it as a combo drive as cd-rom, here's my fstab:

[root@localhost dev]# more /etc/fstab
/dev/hdb5 / ext3 defaults 1 1
none /dev/pts devpts mode=0620 0 0
/dev/scd0 /mnt/cdrom auto user,iocharset=big5,codepage=950,noauto,ro,umask=0 0 0
none /mnt/floppy supermount dev=/dev/fd0,fs=auto,--,iocharset=big5,sync,codepage
=950,umask=0 0 0
/dev/hda1 /mnt/windows vfat iocharset=big5,codepage=950,umask=0 0 0
none /proc proc defaults 0 0
/dev/hdb1 swap swap defaults 0 0

(big5 is traditional chinese language, in case if you wonder )

when i insert a dvd in my combo rom, and i issue: mount /mnt/cdrom
it says:
[root@localhost etc]# mount /mnt/cdrom/
mount: wrong fs type, bad option, bad superblock on /dev/scd0,
or too many mounted file systems

so i take that as i haven "install" the dvd part of it in my linux, so i went to dvd-howtos,
under Files, it said i need LiViD utilities from CVS
i couldn't do it because the site refused me, when i go to freshmeat.net look for ac3dec
it says: This software is most likely completely useless to 99 percent of users out there. It is mostly of use to those interested in audio coding research and evaluating codecs.

then when i go back to dvd-howtos, under kernel it says:
Kernels at least as recent as 2.2.16 or 2.4 series should already have DVD ioctl support, so you just need to make sure you have MTRR support enabled in the kernel configuration, and then compile and install it as you normally would.

well.... i'm running 2.4.19, but i don't have livid utilies, so i guess i'm missing quite a few things when running combo rom, and i'm not getting much help from dvd-howto / cdrw howto

thanks for your advise and time in advance