[John Freeman]

Unfortunately MSI does not offer any audio output options. I prefer MSI as it allows me to capture two audio channels. For some more general information, I opened the file using Blender’s video editor (didn’t realize it had one until troubleshooting yesterday) and an audio channel was present. I have reinstalled Vegas Pro hoping that something was lost in the OS transfer, but to no avail.

I tend to agree that it must be something to do with MSI now that you mention it, as older videos I produced on Win 7 open in Vegas Pro just fine with both audio channels being present.

Well I figured it out, and am almost too ashamed to admit it. I forgot that Vegas Pro 11 doesn’t support multichannel audio tracks, and in my haste I did not ensure that “Downmix multichannel audio to stereo” was selected in Afterburner. I apologize to everyone for the wasted time, and especially to Vegas Pro for ever doubting its sanity.

[John Freeman]

Thanks for the help John. MSI does not offer two types of AVI, only AVI or MKV containers. As far as remuxing goes, is the processing time similar to rendering? The file is roughly 60 GB and I would be disappointed to have to band-aid every video capture I work on.