Audio delay when splitting

Hi, sorry if this is a FAQ, but I haven't found it. I muxed audio e video into an .avi setting delay to -63 because this is what DVD2AVI reported. Now it's in-sync. Now I have to split the file in two parts, so I'll use direct stream copy from the source file both for video and audio, but what about the audio delay? Do I have to set it to -63 again? I suppose I don't, but does this mean the audio delay setting is relative to the previously used delay when I keep the source audio, while it's an absolute delay when I mux an external WAV? Thanks :-)

I believe you could think of it like that :) I think of it as once the audio is muxed in it doesn't have a delay, but is just in the right place. If you demux the audio and then mux it back in without a delay is it out of sync or is it correct? (this might need to be tried with a delay that makes it very out of sync for the first mux and then seeing if the second mux gets it back to mostly in sync.

Ok, thanks. I will make an out-of-sync avi to test how it works !!

Please tell us your results :)

Yes, of course it's logical. But in my ignorance I supposed another solution: that VDub (and AVI-MUX too) would only offset the audio beginning within the AVI padding the delay with some kind of "null" data. Now I know this is not true. Where can I find a (simple) description about how data are stored within an AVI file? Bye!

Unfortunately, it is not simple enough to write a simple explanation, at least not for Open-DML AVI...you find not-so-simple descriptions on