Hi- So, you got the filters. Does the audio file play fine by itself? OK, I'll assume it does, but the muxing doesn't work. The interleaving should be a multiple of 32ms, so the 80ms might not work. Why don't you try Preload of 96ms and Interleaving of 96ms and add the delay, and see if that works. And next time in GKnot, because those figures are for .mp3 audio, try Preload of 96ms and Interval of 3 frames (32ms=1 frame). You finally got a video, so you're almost there. Just one more step. And check your PMs. They're old now, but I wrote 'em, so you gotta read 'em.