Question: How many copies did the best selling album by Sepultura sell ?

<P0-S0> Roots is the sixth studio album by Brazilian heavy metal band Sepultura. <P0-S1>  Since its release, "Roots" has sold over 2 million copies worldwide. <P0-S2>  It was released in Europe on  20, 1996 (1996--) and in the U.S. three weeks later on March 12 by Roadrunner Records. <P0-S3>  It is the band's last studio album to feature founding member and vocalist/rhythm guitarist Max Cavalera. <P0-S4>  Following the shift to slower tempos and Latin-tinged rhythms on the album "Chaos A.D.", "Roots" delves even further into Brazilian musical textures and features significant contributions from Brazilian musician Carlinhos Brown, who guided and arranged the sections throughout the album that feature ensemble percussion playing. <P0-S5>  The song "Lookaway" also features guest appearances by Korn vocalist Jonathan Davis, former Korn drummer David Silveria, former Limp Bizkit turntablist DJ Lethal, and Faith No More/Mr. Bungle/Tomahawk/Fantômas vocalist Mike Patton. <P0-S6>  The album draws influence from the then-surging nu metal movement, specifically Korn (whose first two albums were also produced by Ross Robinson) and Deftones. <P0-S7>  (After leaving the band, Max Cavalera would continue to pursue the nu metal and "world" stylings of "Roots" with his solo project Soulfly.) <SEP> <P1-S0>  "Loose" was one of the best selling albums of 2006–2007 and is twenty-second best-selling album of the 2000s. <P1-S1>  It has been certified multi Platinum in countries such as Canada, United States, Australia and New Zealand. <P1-S2>  The album spawned four singles including the successful top 10 hits; "I'm Like a Bird" and "Turn Off the Light". <P1-S3>  The album produced two European top 10 hits; "Powerless (Say What You Want)" and "Força", while "Try" peaked inside the top 10 in Canada. <P1-S4>  Furtado released her debut album "Whoa, Nelly! <P1-S5>  "Mi Plan" has been certified Platinum (Latin) in the US. <P1-S6> " in 2000 and it became a commercial success selling 9 million copies worldwide. <P1-S7>  She released her first Spanish language album "Mi Plan" in 2009 which became a success in Europe and on the Latin charts. <P1-S8>  Furtado's third album "Loose" (2006) became her best selling album of career with 12 million copies sold worldwide. <P1-S9> Canadian singer Nelly Furtado has released six studio albums, twenty singles, one video album, one live album, two compilation albums, three extended plays, and twenty-three music videos. <P1-S10>  "Folklore" has sold 3 million copies worldwide. <P1-S11>  The album spawned four successful number one singles; "Promiscuous", "Maneater", "Say It Right" and "All Good Things (Come to an End)". <P1-S12>  In 2003 she released her second album "Folklore", while the album did not match the success of her previous album in such markets as the US and Australia, it did however become a success in several European countries. <P1-S13>  It also reached number one on the album chart of nine countries and was certified multi Platinum in several countries such as Canada, UK, Australia, Germany, Switzerland, Austria and New Zeeland. <P1-S14>  The lead single "Manos al Aire" became a European top 10 hit and also topped the "Billboard" Hot Latin Songs chart, making Furtado the first North American singer to reach number one on that chart with an original Spanish song. <SEP> <P2-S0> The following is the discography of Sepultura, a Brazilian heavy metal band. <P2-S1>  Sepultura was formed in Belo Horizonte, Minas Gerais, in 1984 by brothers Max and Igor Cavalera. <P2-S2>  Sepultura's best-selling album "Roots", was released in 1996 and debuted at number 27 on the "Billboard" 200. <P2-S3>  After several lineup changes, Paulo Jr. and Jairo Guedz became permanent members for the band's first studio album "Morbid Visions", released in 1986 through Cogumelo Records. <P2-S4>  Guitarist Jairo Guedz left Sepultura following the band's first tour and was replaced by Andreas Kisser. <P2-S5>  With the new lineup, Sepultura recorded "Schizophrenia" in 1987. " <P2-S6> Beneath the Remains", the first album from the band's contract with Roadrunner Records, was released in 1989, followed by "Arise" in 1991 and "Chaos A.D." in 1993. <SEP> <P3-S0> The Burning Red is the third album by the American groove metal band Machine Head. <P3-S1>  It is the band's second best selling album in the US, selling as many copies in three years as "Burn My Eyes" sold in almost eight years (1994–2002) . <P3-S2>  The album has sold over 134,000 copies in the US and it was certified silver in 2011 by the BPI for sales of 60,000 in the UK.