@xNINELiVES: The beep is timed exactly to the "shot time" of the first .DNG in the raw sequence. So you literally drag (in the timeline of your NLE) the external audio you recorded (you did start sound before picture, right?) until the beep lines up with the beginning of the first frame. Boom: synced. You don't need an in-camera sync track to match up to, as long as the sound recorder you use catches the "beep" sound of the first-frame sync beep. Of course, you have to keep track of what you shot and what you recorded, because if you shoot for awhile you might have multiple beeps on your externally-recorded sound track. Cheers!