What DS Emulator Plays (gametitle).nds Games?

Hi guys,

I'm really new to DS emulation. I've actually never held a real DS, but when I heard the rave reviews of Mario Kart saying it's the best in the series I had to try and play.

I downloaded the following file:

0168 - Mario Kart DS (USA)(SCZ).nds

I tried Ensata, but it didn't load the game. Do you know what emulator plays *.nds games? To run the emulator do I just download it, open the file and play? Ensata was really confusing for a beginner.

Any help on what emulator to use and where to get it is greatly appreciated.

Thanks,
Johnny

Sorry guys no warez help here, just buy a DS to play the games