Dealing with long GOPS (40+ frames)
(If this is in the wrong section please move it.)
UK DVB-T material seems to have longer and longer GOPS. 40+ is normal on some channels now. This leads to (at least) two problems when trying to set chapter marks.
1. The jump to next/previous I-frame routinely fails for longer GOPS. So I have to look for the I-frames by stepping frame by frame.
2. Every two seconds does not give sufficient granularity when setting chapters. Often I have to cut out a single frame in order to force VRD to re-encode so I can have a DVD chapter point where I want it - and success depends on the audio also. It would be nice if VRD would honour the chapter marks I set by re-encoding a little bit to make them valid I-frames.
Xtal Palace 99% > TF5800 BP (5.13.65; + TAPs) > SmartLead > DVR5100H
*.rec > TVSuite b583 > ProjectX b29 > IFOEdit > [DVDSubEdit] > PGCEdit [> DVDShrink] > Nero 6