hi i have the SE W800i and its in good condition although its been used for about a year by my dad. i have put some videos onto it via the 512MB MemoryStick Duo supplied with it, from my PC's Memory Card Reader. They worked fine for a while and suddenly stopped working, i.e. when i try to open it from my phone it shows a video icon as a preview and when i try to play it it says it cannot be played. Its a 3GP video and it works perfectly on my PC with Quicktime so the video cant be the problem. I used ImTOO 3GP Converter to convert the videos. I have had a problem with the MemoryStick before when all of my music just got wiped out randomly but that has never happened again, other than that nothing else. im using 292MB out of 468MB in the MemoryStick with 175MB remaining...any help will be much appreciated