Re:
ANY HELP WITH THIS (out of sync) ISSUE WOULD BE MOST APPRECIATED.
"I would first try rendering your audio directly from Vegas and then simply remuxing it with your Handbrake file to see if that makes a difference. Because of the Frameserver audio problem of downsampling from 48Khz to 44.1Khz and then Handbrake upsampling back to 48Khz, I always do this. If you still get the out-of-sync problem, then try a direct render from Vegas to see if the problem persists."
This worked a treat wwaag I used an excellent free Remuxing software called YAMB, (ver 2.1.0) simple, easy and very fast .
One very happy chapie now.