Some flashcarts (especially old R4, M3, or SuperCard models) have firmware that does not understand DSi binaries. Even with a clean ROM, the cart's loader might corrupt the data in RAM.

For those who may not know, the Nintendo DSi is an upgrade to the original Nintendo DS handheld console. One of the key differences between the two is the DSi's ability to run more complex software, thanks to its increased processing power and memory. The DSi binaries refer to the specific software components that enable the DSi to run its operating system and various applications.

Distributing copyrighted BIOS files is illegal. No legitimate emulator includes them.

| Feature | Clean ROM | Dirty/Bad ROM | | :--- | :--- | :--- | | | Original, unchanged | Modified or corrupted | | File size | Exact size of cartridge (e.g., 128MB, 256MB) | Smaller (trimmed) or different | | DSi binaries | Fully intact | Missing or overwritten | | Checksum | Matches known good hash (MD5/SHA-1) | Does not match database |