(Nashville, Tennessee-AP) -- The Christian Music Trade Association reports sales of almost 50 (m) million Christian albums during 2002 -- about the same number as the year before. The association says Christian music retained its popularity while sales of all other types of music declined more than eight percent. But some might question whether "O Brother, Where Art Thou?" and other albums on the sales chart should be counted as Christian music. The movie soundtrack is ranked as 2002's top-selling Christian album, "Satellite" by P-O-D is ranked second and Mannheim Steamroller's latest release is sixth.