Ok I was on my dsi's sound channel when I noticed it auto played an mp4 instead of an aac file. But it wasn't showing the video.......I sent an e-mail to nintendo and I got this reply: Hello, I can appreciate your interest in the Nintendo DSi. As you may already know, the Nintendo DSi can view photos taken using the Nintendo DSi Camera application and it can play compatible music files, but it cannot play video files. When a video file is in a compatible format (.mp4 and .3gp), you will see the file listed in the Nintendo DSi Sound menu, but it will not be able to play. Additionally, the Nintendo DSi Browser does not support video playback online. Sincerely, Raymond Chan Nintendo of America Inc. The thing was if people here who probably aren't official programmers (no offense) could make moonshell then couldn't nintendo just do a quick update to the dsi and have it able to play mp4 files? And I have one question couldn't we make some homebrew put it in the dsi slot with the bin file thing or whatever that's specific to each dsi and copy it then run it?