Judging from the flag, you are Singaporean, no? Well fellow countryman, let me see what I can do.
Moon Shell
plays movies, it doesn't see movies. LOL. It plays movies with the extension .dpg (nDs mPeG). You can convert video files via a simple, drag n' drop converter called DPGTools (included in the moonshell setup you download). Or, you can produce better quality videos from a more advanced converter BatchDPG.
For Moon Shell to play movies, it is important to have the folder 'moonshl' in the root of your card. Take note of that. Here's a Moon Shell guide:
http://scdev.org/forum/viewtopic.php?t=6760
The latest version of Moonshell is 1.71. Search it up on google, I'm sure you'll find that sucker somewhere.