Do you know exactly what the R4 DS? Well, many of us are not aware of the presence of this new device on the market. It is actually a device that lets you play games on your Nintendo DS. You can also play music files like MP3s or watch movies, read e-books and much more. The R4 DS is one of those gadgets that are useful in high demand these days. Nintendo owners can not imagine playing games without the R4 DS or Dsi R4. Game enthusiasts are always looking for a new device that will add to their style of entertainment and elegance of their games.