[Lilux-help] dvd-ram, udf

Hi, i'm trying to use a dvd-ram disk with udf. i installed udftools, now my fstab entry looks like this: /dev/hdd /media/cdrom0 udf,iso9660 user,noauto 0 0 then i formatted the dvd-ram: kymon@prometheus:~$ mkudffs /dev/hdd start=0, blocks=16, type=RESERVED start=16, blocks=3, type=VRS start=19, blocks=237, type=USPACE start=256, blocks=1, type=ANCHOR start=257, blocks=16, type=PVDS start=273, blocks=1, type=LVID start=274, blocks=2236173, type=PSPACE start=2236447, blocks=1, type=ANCHOR start=2236448, blocks=239, type=USPACE start=2236687, blocks=16, type=RVDS start=2236703, blocks=1, type=ANCHOR now when i try to access the dvd-ram, i get an error message: kymon@prometheus:~$ dmesg |tail [ 2395.878552] UDF-fs: No partition found (1) [ 2396.030263] Unable to identify CD-ROM format. any idea what's wrong? best regards, kymon