Device: SC Micro SD
Zip method works flawless, save with quickpowercircle (reboot ds quickly after you saved and save in an empty sav file)

tested with Monkey island 2

Is there any trick how to save the game ?
I saved in DoTT but wasn't able to load that save, so i wanted to ask if it's only a bug or did i do anything wrong?

I used the zip method to create those nds.gba files and renamed them to .nds