Ok, someone please help me...I have a .mp4 file that i want to watch. I have everything in the right place..but when I try to watch it on my psp it says Unsupported Data Type. It's a .mp4 file and I also have Hide Extensions off. Why isn't it working? Btw its a 2.71 TA-082. To be specific, the file I am trying to watch can be found here--> http://www.hak5.org/archives/152 It is the PSP format one. Thanks In Advance.