yes but you have to have the Nintendo ds browser
You can do it with something called the R4 DS Card (I got mine from http://www.modchipstore.com ) and with that, and a free piece of software called Moonshell, you are able to turn your DS into an MP3 player, just like an iPod in many ways (I even skinned mine to look like an iPod, which is cool).
The software to play it is free, and moonshell also lets you watch movies, but you have to have an original R4 DS Card, and not a clone or copy card, which seems to be more the norm these days.
Once you have your card, then copy over the moonshell program to the micro SD Card, and also, your Mp3 music, and you should be good to go.
Moonshell
Nintendo ds files
The r4ds or R4 Chip is a device that allows a DS to play games that are backed up from their Nintendo DS cartridges. It also has such feature as playing MP3 files and such.. I think you are referring to a DS emulator that allows you to play Backed up cartridges on your Computer.
Yes you can play Nintendo DS games on a Nintendo ds lite.
It can, but you'll have to buy a flashcard that supports that. Bewxare that these card are not made by Nintendo. Nintendo itself has an MP3 player card itself but i don't know how that works, I've only seen flashcards.
Nintendo DS ROM's or read only memory files, are files that are used to play games on simulated consoles known as emulators. In other words, these files work as versions of games from other consoles like the Nintendo Entertainment System, Super Nintendo, Sega Genesis, and so on.
no but you can play Nintendo advance games on a Nintendo ds
Yes, the original Nintendo DS as well as the Nintendo DS lite can play NDSi games.
Yes, in 3ds download play, select that you want to play with a regular ds.
No, the GameBoy Advanced SP cannont play Nintendo DS games.
you can play Nintendo DS games on a Nintendo DSi (i suppose this was what you meant with DS you)
No. There is no way to download or play DSiWare games on Nintendo DS or DS Lite systems.