Tips for DS ripping?

[A.J. Nitro]

What's a good DS emulator to rip from that can remove layers?

I remember a while back, I tried ripping Mario and Luigi from Partners in time, which didn't work to well because it was either Desume or NO$GBA (I forget which) that didn't let me save. When I tried to, the game would close. When I tried the other emulator, the game would lag whenever I turned Animget on.

Any advice would be great!