Mp3 player!with automatic file update

****hi every is what i whant to do:for example i have folder contain mp3 files(or folders with mp3) ,i want flash watch this files and create list (in list i whant that it shows name of mp3 and folder names)automatic using action skript.and when mp3 file(or folder) will be changed with new file(and folder) list must updated and show this new files(and folders) in list automatic and when i press mp3 on list i whant to start download the file. can anyone helps me to do this i need it for my little site and sorry for my english i hope u understand me