MAME 0.180 Romset torrent.
At least 40GB free hdd need.
All roms are compressed 7z files but as you know MAME emulator support 7z compressed files so you don't need to convert to zip file or extract 7z files to run just move all 7z compressed roms to MAME emulator installed roms folder.
File Size are reduced cause of compressed by 7z.
At least 40GB free HDD space need.