Format: 

Super Magic Drive Binary file-format (.bin) : sega 32x/genesis/megadrive simple rom dump, no header.

Multi Game Doctor file-format (.md) : no header, interleaved in rom size/2

Super Magic Drive Interleaved file-format (.smd) : 512 bytes header, interleaved in 16KB blocks

Sega 32x Super Magic Drive Interleaved file-format (.32x) : sega 32x rom, 512 bytes header, interleaved in 16KB blocks