Oh glad you like that one - I was really happy with writing it =). As for technical difficulties though...I don't know anything about that. I definitely didn't purposfully make it incompatible with MP3 players. All I do is write the pieces of music, then export them as WAV files, then convert them to MP3 to lower the file size. Does any of my music work with your MP3 player? I ask, because if there's a problem with all the files, then it must be to do with the way I write MP3 files. But if it's just Hiko that doesn't work, I can try redoing that one. Sorry I don't have any immediate answers - I don't have an mp3 player so I don't really know anything about them...=(