I have not seen any action on this topic for a while, but I'm hoping someone out there is still looking into the situation. I have purchased the Videofab product today (downloaded a few hours ago and registration key installed) as well as DVDfab platinum, so it's not a trialware problem.
I am receiving exactly the same error on some VOB files from a DVD, and not others. Between DVDs, it is not always the same numbers. On movie A, it is 1_0, 1_1, 3_2, 3_4, 4_2, and 4_3. On Movie B, it is 1_0, 3_0, 3_4, 5_2, and 10_1.
While some of these are files I don't need on my mobile device, some are, as previously reported, parts of the main feature. Meanwhile, other parts of the main feature, as well as other chapters work just fine. There does seem to be some particular affinity for the 4th VOB in a chapter chain, though, and since it is usually the concluding chapter of a movie, this is especially annoying.
When the same folders/files are processed using DVDFAB into an AVI or MKV file, all chapters are read and processed without error. I understand I could use the MOBILE option and manual settings to make files for my WinMobile devices, but then why did I spend 40$ for the Videofab product?
The files were extracted from a CSS protected DVD using DVD Decrypter, because until I read the forum I didn't find the link to the CSS enabled DVDFAB. I don't know if that makes a difference or not.