I would appreciate it very much if you took some time to clarify these things for me. I just got a brand new NDSL from a Nintendo authorized repair center, and I don't want to damage it in any way by using a faulty flashcart. I'm concerned about the chips being authentic, and I wouldn't want the electronics to damage the handheld in any way. Of course build quality is a concern too, but I can't imagine anything worse than the handheld itself being damaged and later not running authentic cartridges exactly as it should, with the same responsiveness and reliability. Could you make a recommendation? The original R4 seems to be very healthy (compatibility-update-wise) thanks to support from YWG, so it seems like it's the best bet. It seems like the ones that are labelled just plain "Revolution for DS" and come in a black box are the good ones, right? I've read some reviews saying these ones are supposed to be 1:1 clones of the original R4 that are good quality. Someone also told me, "they may in fact not be clones of the original hardware at all. In fact they may be the original R4 which resellers put away when Nintendo started their infamous R4 “device” lawsuit (Google for more info)." So, are these reliable- the ones these stores are selling? It's partly the stores I'm concerned about, I'm concerned about them selling clones of the clones that are faulty. http://www.eachgame.hk/goods-2527.html http://www.priceangels.com/R4-NDS-MicroSD-...ion-s60265.html I would consider getting an Acekard 2.1 instead, if they were less likely to cause any form of damage to my handheld, and I'm not saying it is, that's really what I'm asking the community about, but it seems to me that with YWG now doing the Wood kernal, and the NDSL coming to the end of it's lifespan, the R4 Wood's compatibility may be slightly better? I'm not really very interested in other features, such as media playback, and the Supercard DSTwo looks good, but since it's all about playing DS games for me, I can wait a while until it becomes cheaper and to see how well supported it ends up. Besides, I heard the SNES emulation wasn't quite polished anyway (yet), and it's extra hardware drains the battery faster than other flashcarts, so the appeal isn't there for me right at this time.