Hi, I've seen a few people looking for help on this issue in the last few weeks, but nobody seems to have any answers. I thought I try here as I too would like a solution. I have Leopard 10.5, the latest version of Handbrake and Subler and a 4th Generation iPod. I encoded a movie with both the main dialogue audio and a director's commentary. I am able to switch audio tracks in iTunes. I assumed that I could do the same using an iPod's ALTERNATE AUDIO option, but when I play the video on an iPod (tried on a few) there is only one track that will play in both the default and ALTERNATE AUDIO modes. I've been looking for a solution for ages and I thought simply renaming or changing the "language" (just renaming0 it as unknown) in Subler would work. No joy. Has anybody here ever managed to get two audio tracks working on an iPod? Thanks for reading.