I bought a PSP3000 at Christmas.
During this few months, I tried to put some videos at my PSP. But won't work, I already changed to MP4 but still not work.

Please help me, give me some information.

Help !!!!!!!!!!!!!!!!!

2)如何看movie?

最直接的方法: 將mpeg4格式movie放在以下目錄：
　　　　┗ MP_ROOT
　　　　　　┗ 100MNV01(請自建這一個文件夾)
　　　　　　　　┗ M4V00001.MP4(這是你的影片檔，及必須以M4V00001,2,3..去命名)
(注意:MP_ROOT 必須在MS卡目錄裡的"PSP"為同一層)