Simply cutting a small portion of a DVD rip with precision

[Magistral]

There is a defect on my DVD where a scene change occurs for a small amount of time, in both audio and video. The effect is glaring and I would like to try to cut it out with high precision. Is that possible without going through a convoluted process of calculating the milliseconds from the frame count and using delaycut to trim the parts before and after the defect before joining them back together?

[Cornucopia]

"High precision", huh?

The highest precision you can use (that still maintains A/V sync) is 1 frame. So every NLE that cuts DVD (mpeg) material should be able to do it. What you have to decide is whether you want a GOP-based/I-frame only editor (which DOES limit your precision even further, but maintains your original quality), or a frame-accurate Smart-Rendering editor (possible quality loss near the cut boundaries).

Regardless, you don't use milliseconds when editing film/video. Stick with frames. I'd use Cuttermaran, Mpeg2Schnitt, etc.

Scott

[Magistral]

Thank you, I have tried to use ProjectX to demux the VOB, however it looks like it is unable to process the part with the defect, and the resulting m2v video file freezes around that point. What could be the issue? Here are the errors logged:

!> ID 0xBD (sub 0x80) packet# 5185, big PTS difference: this 288370857, prev. 100586217
!> GOP# 876, PES_header found in ES, filled with zero... (GOP offs. 486493)
!> PTS difference of 187786599 (00:34:46.517) to last exported GOP detected 
!> dropping useless B-Frames @ GOP# 877 / new Timecode 00:07:15.602
!> ID 0xBD (sub 0x80) packet# 5215, big PTS difference: this 100761897, prev. 288589737
!> dropping GOP# 881 @ orig.PTS 00:53:26.416 (288577521), errorcode: 24
!> Pics exp/cnt 15/19, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 882 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 882 @ orig.PTS 00:18:39.899 (100790922), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 883 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 883 @ orig.PTS 00:18:40.399 (100835967), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 884 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 884 @ orig.PTS 00:18:40.900 (100881012), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 885 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 885 @ orig.PTS 00:18:41.400 (100926057), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 886 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 886 @ orig.PTS 00:18:41.901 (100971102), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 887 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 887 @ orig.PTS 00:18:42.401 (101016147), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 888 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 888 @ orig.PTS 00:18:42.902 (101061192), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 889 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 889 @ orig.PTS 00:18:43.402 (101106237), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 890 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 890 @ orig.PTS 00:18:43.903 (101151282), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 891 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 891 @ orig.PTS 00:18:44.403 (101196327), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 892 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 892 @ orig.PTS 00:18:44.904 (101241372), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 893 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 893 @ orig.PTS 00:18:45.404 (101286417), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 894 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 894 @ orig.PTS 00:18:45.905 (101331462), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 895 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 895 @ orig.PTS 00:18:46.405 (101376507), errorcode: 10
!> Pics exp/cnt 12/12, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 896 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 896 @ orig.PTS 00:18:46.806 (101412543), errorcode: 10
!> Pics exp/cnt 11/11, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 897 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 897 @ orig.PTS 00:18:47.173 (101445576), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 898 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 898 @ orig.PTS 00:18:47.673 (101490621), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 899 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 899 @ orig.PTS 00:18:48.174 (101535666), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537
!> startPTS of GOP# 900 is earlier than the end of last GOP.. (exp. 288577521)
!> dropping GOP# 900 @ orig.PTS 00:18:48.674 (101580711), errorcode: 10
!> Pics exp/cnt 15/15, inGOP PTS diff. 0ms, new Timecode 00:07:17.537

Here is what the scene change looks like (start): http://imgur.com/a/Bl7PG
The end looks similar (going back to the proper scene), and that is where it freezes. The scene change should not occur at all.

[Cornucopia]

Corrupt media.

Demux WHICH VOB? One that you've already ripped? Or the original on the disc?

Polish/clean the disc first. Then re-rip using ISOBuster (with or without AnyDVD as necessary) so you can start with a less corrupt media file. Then demux, then edit if still necessary.

Scott

[Magistral]

I had extracted the VOBs on the disc previously, it looks like somewhere along the line this one was corrupted, as after re-transferring it, it had no issue... thank you for the help either way, I was able to isolate the issue through this process.