Video Jerky After Authoring With IFOEdit

[audiohominis]

Hi all. I'm trying to convert some VIXIA camcorder footage to DVD video using HCEnc and IFOEdit. The encoded .m2v itself plays fine until I author it to DVD with IFOEdit. While perfectly compatible with hardware player (even a very old one), the motion gets intolerably jerky. The source AVS serves 720x480@23.976 and all the HC settings are left at default and there are no issues or warnings
Any idea, guys?

[Ghitulescu]

Known issue. Try rejig or muxman for NTSC material. :search: And I hope the NTSC stream is 29.97 fps not 23.976, right?

[audiohominis]

And I hope the NTSC stream is 29.97 fps not 23.976, right?Yup.
MuxMan did it!:thanks:

[audiohominis]

Ghitulescu, I have a followup question. It seems DVDs I encoded and authored in 16:9, while perfectly playable, instead of letterboxing, are cropped on old 4:3 TV. In Muxman, I noticed the Force check box next to the DAR drop down, which presumably sets some flag on the DVD that tells the player to letterbox it. If that's the case, does it work only with fully authored DVDs with IFOs or you can also have that with bare DVD MPEG2s? the thing is, the TV station guy says their old playbox cant support widescreen, so that's what I'd like to try before hard-letterboxing in 4:3.
:thanks:
PS. Also thanks for you reply to my dual AVC-HD & DVD-Video question.

[Alex_ander]

It seems DVDs I encoded and authored in 16:9, while perfectly playable, instead of letterboxing, are cropped on old 4:3 TV.
This usually comes from 'pan&scan' in conversion to 4:3 setting, applied at authoring. So unless it was cropped for encoding, you can change it to 'letterbox' in DVDRemake.

In Muxman, I noticed the Force check box next to the DAR drop down, which presumably sets some flag on the DVD that tells the player to letterbox it.
Most likely that's for correction of mpeg streams while authoring, in case the input file appeared to have wrong DAR flags.

[r0lZ]

I agree with Alex_ander. The force flag is there to force muxman to ignore what it finds in the original M4V file. There is no "force" field in the IFOs.

audiohominis, if your player displays all 16:9 DVDs in pan&scan, it has a bug. If it displays in p&s only some menus with the two flags set at the same time (letterbox AND pan&scan), then it needs to be configured properly. If your preference is set to letterbox, it should display in p&s only the PGCs (usually menus) that have only the p&s flag. In other words, if only the p&s flag is set, the player must display the video in p&s. If only the lb flag is set, it must display it in lb. When both flags are set, it should use lb or p&s based on your preferences. (Some very cheap players do not have a setup menu, and what they select is hardcoded, but luckily they are very rare.)

[Ghitulescu]

It seems DVDs I encoded and authored in 16:9, while perfectly playable, instead of letterboxing, are cropped on old 4:3 TV.

Your player has a problem, or a false setting.

Should the 16:9 DVD have no wide marker, the image looks extended (DAR ignored assumed to be 4:3) - some TV sets can correct the image using a remote key (Wide/Normal on my old Sony). Should the P&S info be available, the image would be cropped accordingly. Should wide flag be present on an 16:9 DVD, the player would add black mattes top and bottom.


HOWEVER: if your DVD is only 4:3 with an 16:9 image embedded (known as 43LB) and falsely marked as pure 16:9 (it should be 4:3) it might be that the player zooms in the image for an 4:3 TV.