how to put downloaded ds game onto r4

need help, i've jst started using this site to download ds games but when i put them onto my r4 cartridge theyre not working??? i bet its something really silly that i'm not doing right. please helpthanks
alison

download roms here which is in zip file.
extract. drag and drop the nds file on the games directory.
simple as that and you can play right away =]

Hello alison :)The files are in "rar: format and need to be extracted.https://www.romulation.org/forum/index.php?topic=3880.0Read this for info, and read the bottom one for future issues.https://www.romulation.org/forum/index.php?topic=1462.0

hiya, thanx for the tips. need another wee bit of help tho. i had a quick look at the list of ds games and how do u know which ones are zip files?thanks again
alison

Replying to #4

Winrar should open both!, rar or zip!

thanks very much, thats me up and running.thanks again
alison

I downloaded and extracted the games but when I put the Acekard into the DS it says System File is Missing. What am *I* missing?