I have extracted m2v stream from "The big lebowski" DVD using Dvd Decrypter.
The film is about 117 min in duration but when i play m2v in media player it is shown to be 46 min long...althou the movie seems to be all there...

Further more when i mux it into Vob-s again, using IfoEdit, the final movie is shown to be 90 min long ...and the chapter times imported from the original Ifo are all screwed up...?!

I have tried other rippers like VobEdit and bbdmux but the results
are same...

Why is this happening and how do i correct it ?