Recently I got my hands on a DVD which I couldn’t get to mount. The message that appeared consistently in dmesg was:
UDF-fs: No fileset found
Searching the forums I found out that this is a widespread problem. Vista uses some kind of non-standard UDF which only Windows can read. I was very tempted to run to the Windows PC in the other room and let it eat the disc, but I was curious if there was any other solution.
Many suggested mounting manually with -t udf, but that didn’t work. Another suggestion was patching and recompiling the kernel. I was obviously NOT in the mood to do that. Digging a bit deeper I found that there is actually a less greasy solution. The two relevant links are one and two. I will describe now the exact procedure I used to get my Linux box to recognize the Vista-burnt DVD. Note that, because of the rapidly changing environment, this will probably NOT work on anything OTHER than *Ubuntu Hardy with kernel version 2.6.24.