A Couple of Quick Avidemux questions

[Seeker47]

Just checked this out for the first time, using it to remove a couple minutes worth of extraneous material at the tail end of a Divx-5 AVI video file. I had no guide or instructions, but it seemed fairly straightforward. It looks like the Save after edit did a re-encode. I can burn this for playback (not on the computer, as I prefer to judge these things on a better and larger display), in order to do a direct comparison with the original, but am I likely to find any any significant loss of PQ ?

In the Avidemux menus, I noticed items for building an MPEG index, or rebuilding one. Is this comparable to the video file repair feature in VideoRedo ? (Except that the one in VRD works with .MPG only ?) I think Womble may have such a feature also, but would have to double-check that.

[hech54]

If you cut only on a Key Frame and select COPY for both video and audio it should not re-encode anything. When you import an MPEG file into AviDemux....it automatically asks you if you wish to build an index. I doubt it has anything to do with "repair"....but I could be wrong.

[Seeker47]

If you cut only on a Key Frame and select COPY for both video and audio it should not re-encode anything. When you import an MPEG file into AviDemux....it automatically asks you if you wish to build an index. I doubt it has anything to do with "repair"....but I could be wrong.

The section cut out started on "black space" -- nothing visible there -- so I could not say if that was a Key Frame or not. I did not chose COPY, though. Just marked the Begin "[" and End "]" section points, then chose CUT. The apparent re-encode occurred when I saved the slightly shorter file. I did not know about other ways to skin the cat .

[hech54]

AviDemux has TWO ways to advance (and go in reverse)....by FRAME....and by KEY FRAME. A key frame may not fall exactly where you want to place the cut.....but that is the price you pay to save a re-encode.