RiderLeangle said:
Well I made an accidental discovery that could probably help.
Apparently the sound channel can play .mp4 videos (well... only the sound, but it still opens them).
Maybe that means a .mp4 hack can be made and the DSi sound channel can open it? Because MP4 is a much easier file type to mess with than AAC files are.
AAC is one of the two (several?) audio layers of the MPEG version 4 format. The other one is just audio (it looks like you are talking about MP3 audio, since it is most common with .mp4).
Having an AAC buffer overflow with too big of sound bitrate could be possible. Then again, Nintendo already knows this: the DSi is not only an answer to the increasing demand for portability.
The DSi was an answer to piracy.
I don't think we can buffer overrun the system. We would have to find out how to enable the DSi processing by looking at the ROM of a DSi card. We would have to actually get a DSi game cart first (sadly enough).