avi.net backing up Iron Man 2 DVD>divx audio problem (SOLVED)

[crazifunguy]

This one has me stumped. I cannot seem to get a good backup withougt having to change things. I am using avi.net with the following settings. Bitrate - 1024kbps Audio - AC3 Subs - Forced. The video is converted to film at 23.97fps and the audio is preserved but the audio sync is about 1 second off.

What can I do besides manually changing the audio delay to get the sound 100% perfect. I can see the slightest delay that is off and it is very hard to watch unless the sync is dead on.

I can use other methods (not autogk) to convert as a test but then I lose forced subs.

[crazifunguy]

I tried doing the conversion with dvd2avi(dgindex) frameserved into virtual dub. The video results were the same and the audio still out of sync. The delay is found to be -64ms but I find this number to be not correct. Is this some sort of copy protection?

Is there a way to manually calculate the audio delay so the correct delay is used for the audio/video sync?

[hech54]

What did you decrypt the disc with?

[Baldrick]

What did you rip with? dvdfab or anydvd?

[crazifunguy]

I used dvdfab. DVDdecripter showed dummy files and was a mess. I never considered a ripping issue. I used the main movie option at dvd9 100% to a folder. The vob files play with no delay and the sound dead on. The vob's are 23.976/29.97 in gspot. I used the force film option to remove the 3:2. This has the video looking nice and clear but has no effect on the audio. I am using the direct ac3 stream. If i search through ifo edit is there some numbers i can crunch to find the true delay?

Or is it something as simple as a rip issue even though the vob's play perfect?

[hech54]

The video is converted to film at 23.97fps

The vob's are 23.976/29.97 in gspot

What exactly do you mean by this?

[crazifunguy]

the source is soft telecined with 3:2 adding what looks to be interlaced frames. using the force film option gives a progressive output at the film framerate of 23.976. It removes the telecine frames (comb effect frames) that are used for display on an interlaced tv at 29,97fps. This lets the video look clear on computer screens as well as tv's.

The origional DVD was not a progressive source. This has no effect on the audio as the film length is still the same time and speed. The audio was stripped before any conversion. The only thing that is not correct is the audio offset.

If the video was de-interlaced I believe it tries to render the combed frames and gives a framerate of 29.97. To me the quality is better if those frames are just removed if the source is a film source. It also saves on size and bitrate.

[crazifunguy]

Well I found a solution that works. Here are the steps.
1 - Rip DVD with ANYDVD to HD
2 - Re-Author DVD with DVD Shrink (Main Movie/Desired Stream) *Required for subtitles*
3 - Checked VOB's with dgindex (Optional)
4 - Converted with avi.net

This may or may not be a decripter issue. I did not try to rip the full dvd with DVDfab
The audio and video are in sync and progressive.

I will try with DVDfab and report back using the exact same steps.