You could try
TS-Doctor, may be that will do the trick, but I wouldn't get my hopes up too high if I were you.
A/V sync errors are becoming a significant problem in the digital television industry because of the use of large amounts of video signal processing in television production/broadcasting. A/V sync problems are commonly caused when significant amounts of video processing is performed. Typical sources of significant video delays include video synchronizers and video compression encoders/decoders. Particularly troublesome encoders/decoders are used in MPEG compression systems utilized for broadcasting digital television and for storing television programs on consumer and professional recording/playback devices.
For a possible solution of your sync issues, see my PM.
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