A/V Sync (again!) MPG players vs. DVD

[sham69]

Hello:
Through various sources I am gathering a volume of info on why my DVD files lose audio sync, but one mystery remains......

Why is it that mpeg's captured using my TV card play fine in MS Media Player and Power DVD, but are so flawed that they bring PVAStrumento to it's knees and end up with 2-3 second delay part way through an authored DVD? I am curious how these little programs can play these files that puke in DVD Architect (my authoring s/w). How does this work?

If I run the files thru PVAStrumento, I get 1000's of missing audio frames and hundreds of "bad" GOP's. A 1.5 hour mpeg takes 2 hours to scan or demux and is not usable at the end.
The files play great on my computer, but I can't make a DVD.

Here's my spec:
Athlon XP 2000+
1 GB PC 2700 RAM
ABIT NF7-S mobo (nforce2)
Dedicated 80 GB 7200rpm HDD, NTFS, No page file.
Winfast tv 2000 XP PCI tuner card
Capturing using Winfast PVR - to mpeg-2 with mpeg audio
(I get same audio problem with full or half D1)
The audio is going through the board.

I am seriously considering a hardware mpeg tuner card like Hauppage or the new Theatre 550 (when it gets to OZ), but I don't have much problem capturing at full D1 now, except the audio sync thing.

Any tips?

Thanks,
SHAM69

[xujuwa]

I think the problem is not related to whether it's hardward or software encoding. I believe it's the chipset of the capture card. I have a Leadtek PVR2000 which has hardware Mpeg2 encoding. The captured files are the same as you described. I've used PVAstrumento, but the resultant file shows jerky video. Encoding the file into Xvid by Virtualdub also produced out-of-sync video.
Cheerio

[sham69]

Thanks for your reply...perhaps other Leadtek owners can report if they are having similar problems.
It's an inexpensive card for viewing and saving TV on your computer, but perhaps is not the best for making DVD from captured mpeg files.
I may try capturing to avi ->mpeg->DVD and see if I end up with the same problem. DVD architect re-encodes my mpegs anyway, so it may not take much longer!
I'd like to be able to capture to mpeg2 and decide later if I want to author the video to DVD.
Cheers,
SHAM69

[sham69]

I am able to solve my audio problem with VideoReDo (demo). I cut the mpeg to suit and it adjusts the audio during the save process. This only takes about 10 minutes for a 1.5 hour mpeg.
I can then render this to DVD Architect format in Vegas.
Unfortunately, the captures from my TV card all need this step to avoid audio synch trouble on DVD. Back to the lab.......