No Sound, menus do not work the way they should

Hi,
I just made a DVD on disk with ULeads Moviefactory 4.0 (tried also 3.0) and it works great with Powerdvd or Windvd.
Well it's 8Gb so I wanted to shrink it to 4GB with ratdvd (or less).
Used the default settings and it compiled the movie to 2.5GB.
So far so good. The ratdvd file plays ok in win media player (9 and 10) but there is no sound and when i click on the menues it chooses the wrong ones. The wrong movie is played.
Ratdvd shows this structure of the DVD:
http://img368.imageshack.us/img368/5982/ratdvdfehler0lg.png
BUT
DVDshrink shows this structure:
http://img368.imageshack.us/img368/6308/ratdvdfehler20bl.png
which seems to be correct as powerdvd interprets the menue correct.
Any ideas?
That there is no sound seems to be a problem of the MP2 audio track which could be none standard for DVDs.
regards Praktiker.

 

aeeh, sorry, forgot to mention that its version 0.75 and I use the german translation (since I am german).
regards Praktiker.