The Ezflash IV is a GBA cart but works great in a DS as well.
Use the money you'd use on a DS flash cart for a DMG!!
@DMGer he would still need to buy an EMS cart as well.
True true. I would do the same. Nothing beats the original DMG if you are serious about chipmusic. It's a relatively cheap option to get I to electronic music even factoring in a cart.