I downloaded my ao vivo from Play.com but i think you can only download if in the UK, mininova.org or piratebay has the mamonas assassinas cd and dvd up to download (as long as you download bittorrent first)but the Ao Vivo is better as it's a live cd and they sound much better, also Amazon sell both cd's as well as ebay
and as someone has called them skanks well i have to disagree i think they are great very energetic feel good music full of fun and a band who didn't take themselves seriously much rather listen to them than some of the crap around today
i know all the words to chopis centis,debil metal, sabao cra cra most of robocop gay, palados em santo ,mundo animal , bois don't cry and some of the other ones
i listen to them ALOT lol
http://www.mininova.org/tor/812782 album
http://thepiratebay.org/tor/4022577/..._Ao_Vivo-DVDR_[Premiere_Seeders] dvd