> -listcrc shows > 44bb3a40 spc700.rom snes Super Nintendo Entertainment System / Super Famicom (NTSC)
That particular snes.zip has been available on reputable ROM sites since at least 2010, and probably prior to that. Seriously, go to gorram Pleasuredome, it fixes 99% of what people ask about MAME if you just plop their torrents into your roms/ folder.