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KitKat
3rd January 2002, 19:57
Hello all,

Here are the symptoms:
1. Ripped vobs in DVD2AVI detected as 1h47 length @ 29.97 fps.
2. Final wav file length: 1h47.
3. Combined length of the 2 final .mpg files: ~2h15.

When I listen to the mpg files, the sound is off by ~10 seconds at the beginning, ~10 minutes in mid-movie and at then end, the sound cuts off about 25 minutes before the end. Both sound and video "psychologically" sound/look ok.

I'm guessing what's happening here is that DVD2AVI wrongly detects a frame rate of 29.97 and that DVD2SVCD relies on it. (I saw the fps parameter in the d2s file, but it's not user selectable in the GUI.) The video probably is, in fact, 23.97.

What are my options now? Is my only choice to change the fps setting in the d2s file and recover. Can I reuse the .vaf if I do that?



On a side note (aimed at the Author), this is the still the movie with the two "undistinguishable" Chinese tracks. I see that in the .d2s file parameters like AudioStream0 and AudioStream1. The first one is set to 0. Is that actually 0x80? If I write AudioStream1=1, will that pull out track 0x81? Both names will be "zh" but will that give me (encode+mux) the two tracks?

You see, when I play a DVD with a Mandarin and Cantonese track on my software player, my choices are actually Chinese and Chinese and I have to try them both to find out which is which. That's sorta consistent with this "issue". I guess that's just how the industry does it...?

KitKat
7th January 2002, 23:50
Bump.

Plus additional comments: actually, the movie is really 29 fps, but is "recorded" (during muxing?) as 24 fps.

KitKat
12th January 2002, 02:11
By Netiquette standards, how many times is a message author allowed to bump it? :p

No but really, I'm just amazed I would be the first one ever AND nobody has even the remotest shadow of a clue...

markrb
12th January 2002, 07:17
NTSC movies are 29.97 upconverted from 23.976 with 3:2 pulldown with film based material. PAL video is 25fps sped up from 23.976 with film based
Most NTSC TV shows were originaly recorded at 29.97 and so do not need 3:2 pulldown.
I have never seen a DVD that is not 29.97 fps if it's NTSC and I have done material based on film, TV and camcorder.

I doubt the fps is your issue. If you want to be sure rip the VOB's with SmartRipper and run DVD2AVI manually. Click file->open select the first VOB, it should then automatically select the rest of them, click OK. Then hit F5. Read the statistics screen. It will tell you the FPS value.

Mark