You may also try the 1.19 version from www.r4team.com
This supports even the newer games, 1.18 doesn't
Only downside is that the reset doesn't work, makes your DS hang up
R4SDHC works fine with also 8 GB
Whatever might happen above 4 GB is that it will slow down, the workaround for that issue is making an extra directory (and limit the files in it to 4 GB)
although i ended up accidentally changing my nand with no way of going back bc i didn't know you needed a gamecube controller to restore it (i have a wii minus/1.1, which doesn't have gamecube controller support)
@BakerMan:
although i ended up accidentally changing my nand with no way of going back bc i didn't know you...