Tech Support > Computer Hardware > Desktops > Beginner's questions
Beginner's questions
Posted by Matthew Halfant on August 24th, 2003


I'm getting mixed results using an ADS Instant DVD 2.0 to transcribe some
VHS tapes to DVD. With good quality source material (bought movies recorded
at SP) the results are okay, thought I'm running into severe lip sync
problems on my JVC DVD player. Specifically, it starts okay but develops lip
sync video lag within a few minutes -- and it can get worse until the image
itself starts lurching and eveything falls apart. Or, if I stop and restart,
it might recover.

On an older DVD player (Samsung) it's generally okay, although it might
develop a slight lip sync problem but can recover on its own. When I play
the disc on the PC (using PowerDVD) there are no lip sync or playback
problems. It may be that I just don't have a clue as to what settings I
should be using for the recording.

I'm using DVD-R, but could use DVD+R (would that be better?). I've chosen
the low 4 mb/sec with variable bit-rate enabled for video, 224 kbps for
audio. I've tried both 720 x 480 and 704 x 480 with some VCR-recorded
material (at EP) -- the former shows a black column at the right on preview,
which is why I tried the latter (and it does give a better image fit). Can
anyone tell me the rules for choosing between these two?

Also, I'd appreciate any suggestions toward getting better results on
DVD-player playback. I'm working on a new machine that shouldn't be a
limiting factor -- Win2k, large fast drive, and 1GB RAM.

Thanks,
Matthew


Posted by Sanman on August 24th, 2003


The first thing that comes to my mind when you talk about audio sync
problems ONLY on stand alone players, but not you computer DVD software, is
the fact that you are probably using MPEG for your audio instead of the
standard in North America which is AC-3 (Dolby Digital). There is no
guarentee that your DVD player will "properly" support MPEG audio, and I
assume that Instant DVD uses it, since most lower priced packages do. My
guess is that if you use a program like DVDit, which uses AC-3 type audio,
your encoded DVDs will probably play properly on your DVD players. Give
that a try.

Sanman


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