Been nagged by my son to put some music files onto his PSP (he only has 20Mb of data on current card so I was only going to put one or two on for him) Gt the PSP in USB mode and got it connected to the PC so the PC could see it as "PSP". I tried putting an MP3 file and a WMA file int both the "PSP" file (which didnt work) and the "Common" file which also didnt work. The tracks are going in (because the memory is going down ) but when you go to the "MUsic" part of the menu it says NO TRACKS ! So where do I put the files or what do I do to make them play? I'm bamboozled! THANKS!