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DGMPGDec MPEG2 Decoding Package 1.47 Beta 4's Description:
The widely used tools DVD2AVI and MPEG2DEC suffer from a fundamental deficiency: they do not deliver all the coded frames from the input stream. Put simply, they lose frames. This can cause serious problems with audio sync and authoring with some tools. Not only that, but random frame access is not handled correctly and incorrect frames can be returned when navigating on the timeline via MPEG2DEC (and its clones).
Additionally, the original DVD2AVI project was not updated in some time, and it stood in need of some fixes and upgrades. My version addresses a lot of the irritating features of the original project, as well as adds many new and useful features. Refer to the ´Changes´ text files for details. Notable is support for MPEG1, PVA, and transport streams.
There are three causes for the frame loss in the faulty versions.
1. DVD2AVI fails to flush out the final frame´s digit to the D2V file before writing the 9 and closing. This causes one frame to to be lost at the end.
2. MPEG2DEC cuts two frames from the frame count as a workaround for 3 below. This is a kludgy hack that should not be necessary. Thus, thanks to this and 1 above, 3 frames will always be lost. They are lost at the end.
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