VOB Cutter

[RBCC]

Is there a vob cutter that allows you to skip ahead to the part of vob and cut that out without having to watch the whole file? thank you, John

[Kerry56]

If you have the complete dvd structure, you can use DVDShrink in ReAuthor mode and the Start/End Frames tool to select the section you want to cut out. The output will be a small dvd video.

If you just have the vob file by itself, then Shrink won't open it.

[manono]

The original MPEG2Cut:

https://www.videohelp.com/download/MPEG2Cut.zip

[RBCC]

Is there a piece of freeware that allows batch cutting? That. Actually cuts and save where you tell it to cut? I am using Bob cutter. And video cutter, but they seem to jump ahead! John

[manono]

Vobs can only be cut on GOP boundaries, roughly every half a second for NTSC. If yours jumps ahead more than that you're using the wrong cutter.

And what good is a batch cutter if you have to tell it where to cut each time?

[RBCC]

It would be nice if the cutter would cut where I tell it do. Is there one that does this? What are GOP Boundaries? John

[poisondeathray]

It would be nice if the cutter would cut where I tell it do. Is there one that does this? What are GOP Boundaries? John

MPEG2 for DVD doesn't encode each frame completely. Instead, the differences between frames are stored

GOP = group of pictures , it's a method of lowering bandwidth requirements (ie a method of temporal compression)

I frames represent complete pictures, and there is one I frame for each GOP - but P and B frames are only "partial" pictures. GOP boundares occur right before the I-frames

It might look something like IBBPBBPBBPBBIBBP...

You cannot cut on other frames, because they are incomplete by themselves - they rely on information from other frames within that GOP. If you cut in the middle of the GOP, the frames will be corrupted . If you had a stream that was I frame only, then you could cut anywhere , because each frame is complete (e.g. IIIIIIIII)



There are cutters that are frame accurate, and they re-encode the frames within that GOP. They re-make the GOP, thus there is quality loss within that GOP (other segments are passed through untouched). This process is called "smart rendering" - e.g. videoredo, solveigMM video splitter, tmpgenc smart renderer

[RBCC]

Most of these video have a black screen before and after the video I want to cut. Now is there a way to chop the vob file in different places and save the area in between into temporary files? So I can rename them . Would a smart renderer work to cut the file where I want it? Thank you John

[poisondeathray]

Most of these video have a black screen before and after the video I want to cut. Now is there a way to chop the vob file in different places and save the area in between into temporary files? So I can rename them . Would a smart renderer work to cut the file where I want it?

Yes, and Yes

Note - most of these tools don't actually "cut" the original video . They actually make a "copy" of the video in between the mark in/out points that you select. It's "non destructive" editing - the original video is usually left untouched

[manono]

Most of these video have a black screen before and after the video I want to cut. Now is there a way to chop the vob file in different places and save the area in between into temporary files?

Have you even tried any of the programs suggested yet? The original MPEG2Cut I suggested allows you to cut anywhere you like, as long as it's on a GOP boundary. Others, such as the ones pdr mentioned, allow for frame-accurate cutting. They all cost money, though, but they all also allow trial use of the programs.