I just been sync'ing a three camera shoot in Vegas I did on Sunday, at which I had an iriver with a Giant Squid lav on the speaker. It wasn't a wedding but as quite a few here use irivers at weddings, I thought it might be interesting/helpful.

After 48 minutes, all the cameras were in sync, but the iriver was slow by 00:00:00:02 - quite noticable.

I shoved it into Goldwave (the audio editor I am familiar with) and changed the speed from 44100 to 44101, and it came back in sync. :-)

I noticed one of my irivers drifted time wise at my last wedding shoot, but did not record which one. This must be it!

Just been told a far easier way to change speed in Vegas - shows me up as a newbie! :-)

In Vegas hold control and drag end of clip.