I don't know what's on there that you can't get on the net.  I ordered mine from Japan because they were available there before they were here and hence I got all Japanese software.  You can Google for SonicStage and see what you get.  That's what I do typically.  Even if you don't want to use SonicStage (Sony writes awful software) it comes with the NetMD driver and the OpenMG module so you can use something like RealPlayer to send stuff to the player.  Hope that helps some.