Simon Slater wrote:
My daughter was given a DVD with photos on it. I can't open it with Konqueror. Dmesg says UDF-fs: No fileset found. What is the problem? How do I fix it?
UDF is the file system that is used for rewritable DVD/CDs, that is, ones that support sessions, so that you can write data, then, at a later time, add more, etc, until it is full, and then close (or permanently fix) it.
You need to load the udf kernel module:
sudo /sbin/modprobe udf
Then try 'opening' the disk. It should work now.