I just bought a Sony NW-S203F Walkman today (1gb) for $199.00 AUD. I installed the SonicStage CD that came with it (it's 2006 one). I tried importing my music files (all mp3s) into the library, but it seems that only the mp3s that are by "proper" bands work. So like for example, some of the files are downloaded from MySpace Band pages, some are from CDs, some were given to me on burnt CDs, and some are from YouTube (converted to mp3). I noticed that the ones from YouTube and MySpace (mp3s) don't work, a message popups saying: "Cannot find music files that are not registered to SonicStage. (Error Code : 00007180)" All the files are in one folder I created specifically for this. I then tried using a program called "Mp3 File Manager", I put all my mp3s in (some didn't "make it") and when I tried to play them on the player, it didn't work. The SonicStage really annoys me...I downloaded the latest version but have not started installing (I doubt it'd help). What should I do, I don't want to return it, it's awesome. Is there an alternative way to do import music or something? Thanks