I tested this app and I really saw a potential in it. I've been searching for something like this for a while now and couldn't wait to test it. Though the first I noticed was that I couldn't add chapters to movies I encoded with Quicktime Pro (High resolution h.264 for iPod/iTunes, .m4v) which is the main goal for me. It did support files encoded with Virtual hub which plays fine on the iPod, the only difference is that the Virtual hub file makes mp4-files instead of m4v. If support for these files are added I will buy this program! Also, I think I found a little bug. When I add a chapter to a movie, it doesn't show up in the column to the right. At first I thought that I did something wrong and added another chapter (a few seconds later than the first). Then, when I saved the chapters and opened the movie in Quicktime there was in fact two chapters there. This will certainly be fixed in the near future. To sum up, I really like the app and will buy it if Quicktime encoded h.264 will be supported.