There are several reasons why this is a bad idea. 1 - Out of production Real R4DS cards (see 3 for more info about fake R4 cards) are out of production and are increasing in price when there are cheaper cards that are MUCH better than the R4DS. 2 - No firmware updates The R4 Team (the team who make R4 updates) simply don't make updates anymore. No updates have been out in months and probably will never come out for it. So if games don't work, you're screwed! 3 - Too many fake R4s There are probably more fake R4s then Real R4s being sold. R4 III, R4 SDHC, N5DS and many other nasty clones exist. Some clones like N5DS can fry your DS, turning it into a brick and no more than that. 4 - It's just obsolete It used to be the best card out but now its time is up. Or to put it simply: Compare a Gameboy to a Nintendo DS Lite I actually own an R4DS and I am tempted to buy a newer flashcard. One card that I see many users recommend is the CycloDS. It has constant firmware upgrades as well as some nice features like Real-Time Save and Slow-motion. It also supports Micro SDHC which are MicroSD cards that have 4gb and 8gb capacities (and soon 16 and 32gb capacities) So I hope that helped you out and Happy Gaming!