Unlocking the Nintendo DSi: The Essential Guide to BIOS7.bin
It allows the emulator to boot directly into the DS or DSi home menu. DSiWare Support: dsi bios7bin best
For DSi-specific emulation, unique BIOS files (often labeled as dsi_bios7.bin Unlocking the Nintendo DSi: The Essential Guide to BIOS7
The "best" dsi_bios7.bin is simply the most from a legitimate DSi console. dsi bios7bin best