Hi shon3i,
thanks for the new version.
I just made some extended tests to maybe detect a pattern which IFOs ChapterGen refuses to accept. But there does not seem to be a specific thing these IFOs have in common.
It happens for about 10% of my DVDs. It does not matter if I open the IFO from the DVD or from the hard drive. ChapterGen just does nothing. When I then try to use the Open Disc command I get an error message 'Runtime Error 55, File is already open', and ChapterGen closes itself. Restarting ChapterGen and using the Open Disc command again works. (For the Open disc command to work it is necessary that the IFO is located in a folder with the name VIDEO_TS)
ChapterXTractor has no problems with these IFOs.
Here is the link to one of the problematic IFOs:
http://www.sendspace.com/file/il4lz5
Hope this helps...
Cheers
manolito