NPD’s top 10 best-selling games

This information accounts for all data since 1995…

Wii Play
Guitar Hero III: Legends of Rock
Grand Theft Auto: San Andreas
Call of Duty: Modern Warfare 2
Wii Fit
Mario Kart w/ Wheel
Call of Duty 4: Modern Warfare
Madden NFL ’07
Call of Duty: World at War
Namco Museum

Source 1, Source 2