VLC Stream Capture Slowly Loses Audio/Video Sync

By Gerowen,
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Gerowen
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So I'm running Debian Linux and ordered myself one of those EasyCap USB capture card thingies.  The capture card works fine.  I've been using VLC to both view (old school game consoles, Gamecube, PS2, etc.) and record video streams.  Part of the reason I bought it was to try and digitize some of my kids' old VHS Disney movies.  When doing this, I've noticed that in the resulting video file the audio/video slowly fall out of sync with one another.  It's not a set amount so I can't just split the audio track and then shift it to the left or right a given amount.  It starts out perfectly in sync, and then as the movie progresses the audio/video fall further and further apart so that by the end of the movie the audio/video are 1-2 seconds out of sync.  I've tried closing all additional programs and running ONLY VLC to make sure nothing else is eating up CPU time since it's a live stream and not a file, but the issue still persists.

I'm about to go to bed and start another one rendering, this time I'm gonna knock the 300ms cache down to 0 and set the VLC process to a higher priority and see if that helps.  Any suggestions?  I don't mind using other software to do it, VLC was just something I already had installed that seems to work pretty well for the most part.  Is there some setting in VLC I'm missing that would fix this issue?

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Gerowen
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Edit: Note that I've also split the audio off into my "microphone" input on my laptop to try and make sure it wasn't some sort of a bandwidth issue with the capture card, but I'm pretty sure that's not the issue because I've selected the "Display locally" option, and the video I see displayed in the VLC player stays in sync with no issues the entire time; only the version committed to the output file is out of sync.

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Unobscured Vision
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I've had this issue as well, but not using a Capture Device like you're doing. I'm keen to know the reason for that also.

What I did to work around this is simply .iso the DVD in question (legal since you're making ONE copy for archival purposes). You can then mount that .iso and watch. Streaming seems to be a problem with VLC, thus the reason I personally went the other route.

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