Video Studio 12 no audio sync when rendering

[bilc]

This one has me stumped....hope someone has answer. I had about 35 minutes of small video clips taken with a canon camcorder in MOV format. All clips inserted into VS12 along with some still images to make a complete movie. Transition were added along with WAV music to still images. All audio was in sync before rendering to DVD-R. When disc finished and played back on computer or on stand alone DVD player after scenes got past still images had audio sync problems. At first thought it was codec's so I did the same thing again using same clips, still images, transitions and WAV files in same order as first time. Only change was the second time it was done on my laptop. Both machines have same memory 512 MB both have same CPU speed, both have same codec's etc......only difference is HD size. So comparison was equal. Had same problem no sync after still images. Now after un-installing VS 12 on both machines and re-installing VS 11 did project over and had no problems with audio sync. So my assumption is that VS 12 has a bad bug in it. Anyone have a solution ?`
bilc....

[DVDDoug]

I don't know about the differences between VS11 and VS12, but it's probably also got something to do with your MOV files. The more compressed the format, the more trouble you're likely to have editing or converting the file. These problems are not new to VS12. My tag-line/signature below was "inspired" by editing MPEG-2 files with VS8.

My usual recomendation is to convert your files to DV/AVI (13Gb per hour) before editing. DV/AVI is the most trouble free format, and if you can make that conversion without any weird problems, everything should bo OK from there.

I do think this has something to do with the CODECSs... Maybe flaky CODECs or the CODEC's inability to handle flaky files... Sometimes it's a particular file that causes trouble... I think sometimes some slight corruption in the file can cause sync problems... Suppose you have a few video frames with data that can't be transcoded. Maybe the bad frames get tossed-out, but the associated audio remains... Now, you've got a sync problem. (I'm not saying that's exactly what's happening... just a hypothesis of what might be happening.)

[2Dogs]

Rather than a camcorder, are your .mov files actually from a digital camera?

I find that VS12 has gone backwards as far as compatibility with video from my own Panasonic digicams is concerned. There were a couple of patches for VS11 to address some issues with digicam video, which definitely helped.

Doug's suggested workflow, whereby you first encode to DV avi or some other format seems to work quite well, though it adds time to the process.

I would point out that many digicams, my own Panasonics and many Canons included, produce video that is less compressed than DVD mpeg2 video, and should not be confused with Nikons, Kodaks etc that use very compressed mpeg4 video.