I just started to use the new release today 4/2/09, first I was burning some blurays (udf 2.50), then I started to attempt to burn some dvd5 and dvd9's, when up came the box stating that my video files need the different file systems (iso 9660+udf), well I click yes, please correct this for me... and then I checked the file system and it was still udf 2.50, so I went ahead and changed it to iso9660+udf and used udf 1.02, but I thought maybe I should let you all know about my experience. My frig_en HP computer has a mind of it's own, I have turned of UAC and other vista troublemakers but still strange things happen with it software uninstalls other software etc., so I don't know if it is just my system or if it is a bug in the new release. The last release it would do the please correct this for me operation just fine including picking out the correct udf version (1.02), but not now. I am an old dvdfab user, and until I got into blurays I was stricktly a dvdfab person, but fengtao is working on his bluray support and so I started using anydvdhd and this wonderful freeware imgburn (for which I have donated some $$$ because it writes so much better than dvdfab does, I still love dvdfab - but the burn speeds and other options (most I still need to learn) make me very pleased with imgburn, so I hope this helps...