Merging VOB's and fps

[jriker1]

I have a DVD that I am trying to convert to another format for use in my media center server. Having a couple problems. First one, no mater what I do the audio seems a bit out of sync. Have opened the VOB files in premiere pro and converted to MP4 but sync issues. So I started thinking of joining all to VOB files together and doing a single conversion of the whole thing with different tools and see if any are in sync. That's when I noticed one tool show it was 29.97fps. I was surprised as MediaInfo says it's 23.976. I ran media info on all the vob files and was surprised to see the first one in the series was 29.97 and the rest 23.976. Is there a reason for this?

There is also some weirdness in the first VOB where the video is out of sync at the beginning and then the video has a slight hiccup on screen, and then it's back in sync. Separate from the overall conversion issue as the video seems to be a mess all over the place with the audio.

Any idea from the above what's causing the audio sync issues and how to fix it? More details? Thoughts on how to merge all the vob's together properly knowing they seem to have different fps between the files for some reason?

Side note, if I open the DVD with MakeMKV I get some entries like "Calculated BUP offset for VTS#1 does not match one in IFO headers".

There are 4 of those entries.
THanks.

JR

[Ghitulescu]

there are no 23.976 or the like (24) DVDs. Blurays yes, VCDs yes, but no DVDs. These discs may be soft telecined, that means marked as 29.97 but the content is progressive 23.976. How a particular software deals with them is different from case to case. Of some help may be dgindex.

Secondly, what you do is wrong. The VOB is not "video", but a container that holds together many things. You should separate the main movie/episode(s) from the DVD/VOB using a DVD-enabled tool, like DVDshrink, vobblanker, pgcedit etc etc etc.

[jriker1]

there are no 23.976 or the like (24) DVDs. Blurays yes, VCDs yes, but no DVDs. These discs may be soft telecined, that means marked as 29.97 but the content is progressive 23.976. How a particular software deals with them is different from case to case. Of some help may be dgindex.

Secondly, what you do is wrong. The VOB is not "video", but a container that holds together many things. You should separate the main movie/episode(s) from the DVD/VOB using a DVD-enabled tool, like DVDshrink, vobblanker, pgcedit etc etc etc.

Thanks for your guidance Ghitulescu. I tried MakeMKV and that seemed to create an MKV file that when I ran it thru a converter was 29.97fps and in sync. I will probably try your suggestion of pgcedit as I can't do anything with an MKV file directly in my workflow which includes Premiere Pro. Short of using Handbrake lossless to make an interim MP4 out of the MKV. But thinking pgcedit and loading the resulting m2v and ac3 file directly into Premiere may work better assuming the sync is maintained like MakeMKV allowed. Though thinking you may not be able to directly load an ac3 file into Premiere even though it can handle it inside a container.

Thanks.

JR

EDIT: Tried pgcedit. Very odd. Demuxed the streams, and then used My MP4BOX GUI to create a MP4 file from the M2V and AC3 files. MediaInfo says it's 29.97fps however when I open the file in Premiere pro it says it's 23.976. Microsoft Expression Encoder didn't know what it was. No FPS listed and no video shown but loaded it. Thoughts?