DS ROMs don't open in Twilight Menu

[freschi]

I have a DS Lite and I installed the Twilight Menu on my R4, but I'm having several issues. Sometimes the GBA emulator doesn't work, I format the SD card, then the SNES emulator stops working, etc.
So I gave up on emulators and focused only on DS games, but I'm having a problem that I don't know if it's normal, or if there's a way to solve it. Some ROMs work perfectly, others show the icon before I start but when I start it gives me a red error screen, and others (most of the ROMs) don't show the icon and if I try to start it gives an error "nds-bootstrap an error has occurred" Can you guys help me with this?

 

[Kwyjor]

You should check your SD card for errors by formatting the card and running h2testw on the empty card.

SD cards go bad with alarming frequency and can cause a wide variety of problems when they start to fail.

 

[freschi]

Thanks, I just tested the two SD cards I had here and both that I used were corrupted. I just bought a new one on Amazon, I'll wait for it to arrive to test it.