problems mounting a DVD

[David Syphers]

I'm trying to mount a DVD+RW disc on my DVD-ROM drive, and not succeeding. 
Trying either 'mount_cd9660 /dev/acd1 /cdrom1' or 'mount -t 
udf /dev/acd1 /cdrom1' results in an 'Input/output error'. I've never tried 
mounting DVDs on this drive before, but I play DVD movies on it all the time, 
so I assume the problem has something to do with file systems. Any ideas? 

Thanks,

-David

-- 
"What's the good of having mastery over
cosmic balance and knowing the secrets of
fate if you can't blow something up?"
-Terry Pratchett