Captured AVI run fast when viewing

[Tom Cader]

Not sure if this was covered in the past 5000 messages but I've run into a problem. My All in wonder capture card just stopped capturing. Nothing I could do including a system rebuild would not let the driver load. I'm guessing the card went south. I put in an ELSA capture card in I had gotten earlier in years but had problems capturing through VS. I down loaded a free capture software and captured everthing in AVI format. When I play it even though I captured a 29 frames a sec. It run's fast. Not sure what I'm doing wrong. Any help would be appreciated

[THoff]

There are probably fewer than 29.97 frames per second in the file, yet the header says otherwise. You could try analyzing the file using GSpot to find out.

[Tom Cader]

Thanks THoff I downloaded it and will check it. Size of the file is huge for a 15 minute shot. But when converting it to mpeg2 and putting it on DVD it's a lot smaller. I think the total in AVI was about 8 Gig and when I burned it, it came out to be 1.5 gig. Are you then saying my Elsa card just can't capture at that rate? Thanks again

[THoff]

AVI file sizes depend on what codec, if any, is used to compress the audio and video contained in the file. Uncompressed AVI is about 65GB/hour for DVD-resolution video.

I'm not saying that your card isn't capable of capturing a full 29.97 fps, but there may be some issues with your system. Running the hard drive in PIO mode instead of DMA mode would slow it down a great deal and may result in the drive not being able to keep up with the capture. A system that doesn't meet the UVS system requirements (processor speed and RAM) could also cause problems.

Have you tried capturing using ATI's MMC to see if that does a better job?