Can't play my nds roms

Hello
I download some nds roms like Dragon ball + Naruto + Yu-Gi-Oh
Non of them is working i even tried No$Gba Desume it still not working.
It just open wit hblack screen ???
Any1 knw what to do ...
I can't just spend my time download all and none of them isn't working >_<

Nintendo DS (dual screens) emulators are in a early stage , thought they work with some the people , them saying that they dont work 100% improvments are needed so thats why there so many version's have pataince grass hoper you shall learn the way of chi

*sigh*Read this: https://www.romulation.org/forum/index.php/topic,1462.0.html

IT still not working O_O my no$gba i put it like this.I did change it to that 512
But where is download that last update??

Try some of the others beside 512, though it's most often the answer it's not always the case.

WEll i did tried
It say the save data is corrupt and ill be deleted :'(
I don't know what else to do :(
Can any1 help me ???

how do u run the .rar files? do u have to do somethin first? the DS roms downloaded are .rars.

yuo have to extract the file from the .rar

you need to download winrar to extract the NDS files