Re: Simultaneous recording with two digital recorders?

["Marc Myers" primatemarc]

Synchronization is a big topic in audio for video. Each device will have some 
error in their internal clocks and so one can expect them to drift relative to 
one another over time. How much would be an experiment. You could certainly add 
the tracks together in most audio mixing software and compare. One could check 
for the difference ( it will sound like reverb and likely won't be that great 
unless you've been recording for a long period of time) by matching the 
waveform at the beginning and then go to the end and measure the difference. 
Synchronizing them would be a second step.
I can't verify but it's been reported to me that the audio time-stretching 
utility accurate enough for adjusting long recordings is the TimeWarp function 
in the $19 GoldWave audio editor.