Open 'My Music', now once on the next page press 'white button' on controller. Now choose 'Add source', choose 'Browse' find the folder 'E:\TDATA\fffe0000' choose 'OK', now highlight where it says 'Enter a name for this Media Source' and name it to something like 'soundtracks or MS soundtracks' or whatever you wish it to be. Now choose 'OK', now the name youjust specified shows up in the 'My Music' list, click onto the main folder (with the name you set) and if you have more than one 'soundtrack' it will show other folders, inside those folders are your MS-Dash ripped music files
This method works with any files you wish to add to the lists, also works with PM3 and MC360 skins