It replaces the Strictly Commercial set in Zappa 's catalog .
It is the second greatest hits album ( to be released ) of Zappa 's best known material , the first one being Strictly Commercial released in 1995 .
greatest hits album replaces the Strictly Commercial set in Zappa 's catalog .
It is the second greatest hits album ( to be released ) of Zappa 's best known material , the first one being Strictly Commercial released in 1995 .