I don't have the means to record live drums at my home studio, so what I'd like to do it to track everything but the drums against a drum machine sequence, then burn a CD-R of all the work files and take that to another studio to track the drums, then burn another CD-R to bring back to my place to mix. If I find a studio that is running Logic Audio on a Mac, what file format(s) does LAMP use? WIll I have to convert the files back to WAV files before I can continue working (I am using LAWP 4 - see full system details below)? Also, what if they are using a previous version - how would that affect this workflow? I know in the graphics world cross-platform functionality is generally very easy to achieve, but I'm curious as to what I'm in for on the audio/MIDI side of things. TIA, Brian (admitted Logic newbie) LAWP 4 DSP Factory (2416 & AX44) SBLive! (full version w/digital IO card) Sound Forge 4.5 / CD Architect 4 Win98 (not Lite, not SE2) 512MB RAM 22GB HD (IBM Deskstar 22GXP)