I get more than I wanted after cutting a video with Vdub

[videoboy30]

It worked fine before, but now whenever I try to cut and save (direct stream copy) a cut video file, the new video file always start a few seconds before the "mark in."

The AVIs are divx/lame CBR mp3.

What could be causing this and how do I fix it?

Please help...thanks.

[lumis]

the reason this is probably happening is because you are cutting at a non-key frame.. press the key forward & back button and you'll see the locations you can cut at.

[videoboy30]

Well I used to be able to cut a non-keyframe and the output plays correctly.

If you can only cut from keyframes, wouldn't that make it pretty much useless?

[guns1inger]

It depends on the codec as to where the keyframes are. DV-AVI has a keyframe every frame, Divx/Xvid have an I frame perhaps every 200 frames depending on how they were encoded. This is why some codec are great to edit with, and some are better for playback.

[bugster]

If you want to cut at non-key frames you will have to re-encode I believe. (Full processing mode)

[guns1inger]

Which will allow Virtualdub to create new I frames at the edit points. I suggest if you are going to do this, make sure you have all your edits in place and make this the final version, as every re-encode costs you in quality.

[videoboy30]

Which will allow Virtualdub to create new I frames at the edit points. I suggest if you are going to do this, make sure you have all your edits in place and make this the final version, as every re-encode costs you in quality.

How about fast/normal recompress mode?

[Abond]

If you don't use any filters in VDub fast recompress should work.

[celtic_druid]

You only need to re-encode the last gop. Cut to the last I frame before where you want it cut. Then just re-encode that part. Saves time encoding and helps keep the quality.