Encoding videos adds 10-20 black frames at the beginning of the video

[jacob28348]

I'm using virtualdub to encode AVC videos into VP8. When I encode anything, 10-20 black frames are added at the beginning of every video. The strange thing is, if I hit save again and overwrite the video, the black frames disappear. Does anyone know why this is happening?

[Baldrick]

Please do not cross post in several forum!!

Continue in https://forum.videohelp.com/threads/370069-Encoding-videos-adds-10-20-black-frames-at-t...24#post2373224

And no, I have no idea.