Hey zefie, just wanted to respond to all your comments/questions.
1) Interesting about the Unicode. Although I don't really support display of Unicode tag characters, i thought I had at least handled them when reading the id3 info. I guess i'll have to look into it again. As far as why the files don't play, I think I might have an idea why...but I'll have to look into that too.
2) That is one of the things that is on my To-Do List. I know it is pretty much a necessary feature for media players, I just didn't have the time to get it in before this compo. It will be included in my next release.
3) I could probably manage this. I'll also add that to my To-Do list. If you have some suggestions in terms of how this could be controlled, let me know. It's not something most people would use so it probably wouldn't be a main feature. But I could have a little tool that could be brought up where you could press a button to do A-B repeats.
4) None of my VBR songs have a problem. What bitrate are you using? Maybe the bitrate on your songs is simply too high for the PSP to handle it well. Also, if you have set the clock (in v0.1.2) to a low value, it may not handle high-bitrate songs very well, as these require more processor time.
5) How fast you navigate the menus shouldn't affect the way the MP3s play. The MP3 decode routine runs in a separate, higher priority thread than the main program, so if you are running out of clock cycles, you'll see a slow down in the framerate of the UI, but it shouldn't affect the playback of the MP3s.
6) This is most likely due to extra thread that the MP3 decoding is occuring in. Even if the main thread crashes for some reason, the MP3 thread may still be running, in which case the PSP may think the program is still alive. I am not exactly sure. But you can just hold the power switch up for several seconds and it will for a hard power off.
Also, i'm not sure exactly when my next release will be. I need to dedicate a little more time to my Master's Thesis, but I will be continuing to work on this when I have time. I hope that this program will become a viable option to the other MP3 players for the PSP, and I am confident that it will in time. After all, this is a new program and needs improvement.
Thanks for all the feedback, suggestions!!