I have tried PSP Video 9,Womble, 3gp, mpeg video wizard,PSP Media Manager,Super, and psp pro. I have several small mpeg files that I have converted to mp4 in order to watch on my psp. Most of the files are 2mb to 3 MB in size. When converted, some of the file size is 0 mg in about 1/5th of all the videos I transcode--this is with all the programs. I have also tried to stream them all together in order to make a dvd then use Xcopy psp to transfer them but the files were unrecognized as a total stream. Many of the files have been given the "M4V20001.MP4" name and placed in the proper directory and this makes it hard to identify exactly which ones were not converted. I know the directory is correct since other videos have worked just fine. What am I doing wrong? Is there a program to analyze the file? Not sure what it would do but might yield some info about it. If I stream all the videos in one long file, can I place chapter markers in them in order to forward it to the right section?

Any help would be appreciated.