Sorry, I hadn't looked back at the beginning of the thread in a while, and was thinking that Chuck was talking about running into the R4, which does resample inputs (instead I see the R4 was mentioned by gratefulphish) - but since the R4 does that using the same clock on all 4 channels it shouldn't matter and they should still be in sync after resampling (I believe). But certainly if you are running into two diferent recorders and one or both of them resample and they aren't linked by wordclock then the two recordings will not be synced. But that does make me wonder - if you feed two digital sources that aren't synced into something like an R4 that does resample, then I guess they would end up synced?
Steve