Finally found it (it wasn't easy), and now that I've tested it, I'm posting it here because there may be others who have always wished something like it.
http://www.superfamishop.com/moonshell.html
That is version 1.6 of the moonshell for nintendo DS. It's a type of media browser / viewer which can be used on various types of storage devices for the NDS. I've tested it on my supercard CF.
It can read media files that have not been converted before. Just copy the original file to the device and use the mooshell to read it.
Here is what:
- display jpg: the image starts at 100% size, you can use the stylus or d-pad to pan. X and Y are zoom-out and in respectively (it takes some time to reconstruct the image while doing that. I recommend to use only images at 1024x768 maximum)
- play mp3: the quality is very good. it becomes a mp3 player.
- play nsf: again, very good quality. the only problem is that each track reads as a single file, and it can only display 255 files on each directory. So you need to create a folder for each nsf, or group of nsf.
The music plays for a certain amount of loops. It has a nice fade out when changing tracks.
- play spc: the quality is good on some games, not so good on others and slow on others. It's worth the try, most good games play very well.
The music plays for a certain amount of loops.
- for these music features, you can start playing and then close the DS. The music keeps playing (going to the next track normally when each track ends), and the screen's light goes off. The L and R buttons are disabled, so you can carry it on your pocket without accidentally pausing the music or going to the next track. But you'll have to open the lid if you want to do any of those.
- I've read it can play mpg, but it's very especific format, haven't tried it yet.
If anyone knows of an even newer version, or a better program, please do reply.
