problems with downloaded games

I use an R4, and the games usually work. But lately, after extracting the nds file and putting it in the R4, when trying to play the game in the DS, it only says: "Could not read data. Turn off the power and reinsert the DS card". Also there seems to be a lot of rar files for one game.

Any idea why this is so?

Thanks for the help.

 

Memory card could be on way out. Try full format. Try getting your games from else where

 

Sorry if I seem like an idiot, but when exactly is a memory card 'on the way out'? And...god, I feel so stupid, what is full format? Oh, and I get my games from http://ds.rom-news.org/.

Thanks again.

 

that site is where i get my games too. they work perfectly fine. so after you dl the game and you extract the folder, open that folder and open the folder thats inside it, you'd sometimes see a bunch of more things to be extracted, the thing i do is just extract the biggest one and whatevers extracted i take that folder and drag to the r4. it works perfectly fine for me. do you need to update your firmware? idk, try it.