Soundscan released their yearly 'best sales' charts. One being best selling CD's for 2003. The other chart being best selling CD's EVER during the Soundscan era (it was introduced in 1991):
Top Ten Selling Albums Of SoundScan Era (1991 - 12/28/2003)
01. SHANIA TWAIN – "Come on Over": 14,896,911
02. ALANIS MORISETTE – "Jagged Little Pill": 14,200,822
03. METALLICA – "Metallica": 13,803,308
04. BACKSTREET BOYS – "Millennium": 12,056,675
05. VARIOUS – "Bodyguard" (soundtrack): 11,741,779
06. SANTANA – "Supernatural": 11,333,627
07. CREED – "Human Clay": 11,291,067
08. N SYNC – "No Strings Attached": 11,069,789
09. CELINE DION – "Falling Into You": 10,614,005
10. BRITNEY SPEARS – "Baby One More Time": 10,472,878
H-D 