I bought myself the "Complete Monty Python's Flying Circus" DVD set and wanted to replace the English for hearing impaired Subtitles for German subs, that I would translate myself.

Of course, I'd like to keep Menus and everything else intact.

I already successfully ripped the subtitles and convertet to *.srt with SubRip from the full Backup made with DVDShrink.

Then I wanted to create new subs in Subtitle Creator and sync them with the original *.sup

However after linking one of the three episodes, the sup suddenly goes from the end of episode one right to the middle of another episode.

Strangely enough, the srt is correct.

Did I do something wrong, or is the behaviour for the sup normal? How do I correctly link it?

Furthermore, when I watch the DVD through Subtitle Creator it plays some Extras first, instead of the main episodes, that I wanted subtitles to.
How do I get the correct beginning?

Can anyone help me with these questions?