[cbxbiker61]

You have fixed the issue for the individual VOBs. Great step forward! It is getting more subtle now Turns out the menus are 25fps and the movies are 50 fps. On switching from a 25fps VOB to a 50fps one, things go wrong. By jumping up and down 30s once, everything I have tried can be made to play correctly now.

For many of my DVDs I have just made an ISO, so that menus and options are still present. Thanks for the mkv hint, but converting them with makemkv looks like a work-around as it would take quite some time and menus/options could be lost. As the issue appears with ISOs, it also means that the original DVDs don't play correctly anymore. That cannot be the intention?

I just committed a change to both audiofilter and xbmc repos. Now this change is really subtle compared to the last. Basically the first audio frame of the VOB's may be invalid. Previously I would just drop the frame. Now the code will instead repeat the last valid frame. So it should make the audio transitions between VOB's more fluid.

Makemkv does mark chapters, so you can move pretty rapidly forward and back, but yes you lose the menus. (To me that's mostly a bonus )

As far as the 25/50fps VOB transitions go...I don't see anything in the audio code which should affect that (I noticed when transitioning to the main video that the audio was playing fine, just the video was not behaving). I'm in the US, so 25/50fps is not common here. I was pleasantly surprised to see 50fps work correctly.