I was noticing a noise when I turned around my PSP, and I found out what it was. A screw that holds down the UMD drive came out. It's on the UMD spinner "thingy" because it's magnetic. I hope it will still work. There aren't supposed to be on the UMD "spinner thingy" normally, right?
http://img176.imageshack.us/img176/8849/s5000138ci0.jpg
http://img122.imageshack.us/img122/3743/s5000143jg3.jpg
http://img122.imageshack.us/img122/4351/s5000145ia3.jpg