I recorded an hour-long concert on two different devices: my MacBook Pro using Logic Express 8, and a Zoom H2. I would like to combine the two recordings in logic and mix them together. If I line up the downbeat of the first tune, everything sounds great - for a while. Eventually the two audio files drift out of sync with one another, and by halfway through the recording, the results are un-listenable. I recorded both files as 44.1kHz 16-bit WAV files, so theoretically they *should* line up, right? Anyhow, is there a way in Logic to adjust one file or the other to correct this problem? It seems like I should be able to select a point at the beginning where they line up, and another at the end where they should line up, and have them automatically adjust. Thanks for any insights you can give on this problem.