I updated to 188.8.131.52 and have tried everything over the last couple of nights and still can't get my PSP to recognize 480 X 272. Clone DVD Mobile encodes the DVD to my Video folder on the PSP with no hickups. I have also tried renaming the file to M4VXXXXX.mp4 and putting it in the each of the MP_ROOT sub directories with no results (can't remember the exact subdirectory name). Anyway my understanding is that it can go in the PSP level VIDEO folder without renaming and it should work. My PSP doesn't even see it. It still works fine at the lower res as an MAQ type file but not in higher res. I'm using the following: PSP firmware 3.5 Vista Ultimate Any Ideas?? Thanks.