The MP3 player contends that it's memory is full, yet it has nothing in its navigational tree. The mp3 device has corrupted before; however, last time it simply froze on one track rendering it impossible to change tracks without the device shutting down. In this instance there are no tracks to attempt to switch to, the only thing that works is the radio. My solution was simple, reinstall the firmware implementing YP-MT6 updater--just like last time I had an issue. Sadly, the firmware install freezes well under half way through when it says "locking drive[ers?]" it was one of the two. Anyway to beet this problem? 'Cause I'm at a loss. Not a happy costumer as far as this little samsung is concerned--i figured their phones were great so their other stuff should be too! Ha. links to costumer service would be great.