Hi all,

Just installed Ubuntu 7.04 - great - except I have a problem with the dvd drive. Plays movies, and audio with no problem and Ubuntu CD is recognised. BUT if I try to use a dat dvd (with files etc backed up from windows) get message "invalid mount option when attempting to mount the drive"

I have run "dvdisaster" programme which reports no problem with the disk - no bad sectors etc. Disk works fine on a windows m/c.

Anyone any ideas? I would like to be able to bring my old file across.....

Thanks in advance

And what mount options do you use?

Depends on exactly HOW you made the DVD with Windows. Whether it's a UDF format, or an ISO9660 format, or a multisession disc, etc. If possible, stick the DVD into a Windows machine and try to figure out what format mode has been used to make it.
Next, tell us what mount command you are trying to use from Ubuntu to mount the disc.
Also, which Windows was used to make the DVD, and with what CD-making tool?? If it was Vista, then there *may* be more work involved in reading the disc.

Thanks for the quick responses.

The DVD was made in Vista - drag and drop - so I'm not sure what format that would be. I haven't tried any particular mount commands other than putting the disk in. Other formats are found automaticly but with this I just get the error message I quoted.

Perhaps quicker to recopy in a different format on a windows m/c?

I'd wager the disc is in a UDF packet format, something like when one formats a CD to act like a floppy.

Try this in a console to mount it (first make sure the mount location exists):

mount -t udf /dev/hdc /mount/location -o ro

..where hdc is your DVD drive (hdb or hdc or hdd or whatever) and /mount/location is a folder to mount the disc on.
If this fails, it would likely be better and simpler to re-burn a/the DVD using a standard burn, as Vista defaults to something not necessarily simple to read when doing that drag & drop stuff.
Packet-writing IS supported by Linux, and isn't complicated, but the Vista CD's are just 'weird'

OK - I took the slower but easier (i think) route and re-burned the dvd. Evrything is now fine.

Bravo Vista

Apart from that Ubuntu is fantastic - things have moved on so far from the last time I tried Linux 3 or 4 years ago. Instalation is easy and the programmes are great.

Thanks for the help