can't mount a UDF dvd under Linux

[Dean S. Messing]

Mogens Kjaer writes
: Dean S. Messing wrote:
: ...
: >        In some cases useful info is found in syslog - try
: >        dmesg | tail  or so
: 
: What's the last lines of dmesg when you try to mount?
: 
: If I mount a UDF DVD (containing Windows Vista :-) ) I get:
: 
: UDF-fs: Partition marked readonly; forcing readonly mount
: UDF-fs INFO UDF 0.9.8.1 (2004/29/09) Mounting volume 'UDF Volume', 
: timestamp 2006/11/02 22:00 (1078)

The last line is precisely how I wrote it.
And this is also what others report on Google.

Dean