AVI desync issue when rewind is used

[ReaperMan02]

Hello. So it seems as though the more that rewind is used while recording to AVI the more that the sound becomes out of sync with the video. Looking at the file information from Virtualdub confirms this with the sound length trailing behind the video length.

[ReaperMan02]

Additional testing shows that it's not the duration of the rewind, but how many times it's done.