This is a Top ten best-selling albums of sound scan era in the United States according to the Recording Industry Association of America. Nielsen SoundScan began tracking sales data for Billboard on March 1, 1991. The list of albums sales are between 1991 to 2007 (see below):

1991-2007 list

1. Come on Over / Shania Twain ~ 15,449,000
2. Metallica / Metallica ~ 15,077,000
3. Jagged Little Pill / Alanis Morissette ~ 14,557,000
4. Millennium / Backstreet Boys ~ 12,099,000
5. The Bodyguard / Soundtrack ~ 11,798,000
6. Supernatural / Santana ~ 11,643,000
7. Human Clay / Creed ~ 11,504,000
8. No Strings Attached / N Sync ~ 11,104,000
9. Beatles 1 / The Beatles ~ 11,097,000
10. Falling Into You / Celine Dion - 10,768,000

1991-2006 list

1. Come on Over / Shania Twain ~ 15,408,533
2. Metallica / Metallica ~ 14,819,905
3. Jagged Little Pill / Alanis Morissette ~ 14,513,313
4. Millennium / Backstreet Boys ~ 12,091,491
5. The Bodyguard / Soundtrack ~ 11,789,552
6. Supernatural / Santana ~ 11,588,453
7. Human Clay / Creed ~ 11,483,557
8. No Strings Attached / N Sync ~ 11,099,051
9. Beatles 1 / The Beatles ~ 10,821,222
10. Falling Into You / Celine Dion - 10,768,000

1991-2003 list

1. Come on Over / Shania Twain ~ 14,896,911
2. Jagged Little Pill / Alanis Morissette ~ 14,200,822
3. Metallica / Metallica ~ 13,803,308
4. Millennium / Backstreet Boys ~ 12,056,675
5. The Bodyguard / Soundtrack ~ 11,741,779
6. Supernatural / Santana ~ 11,333,627
7. Human Clay / Creed ~ 11,291,067
8. No Strings Attached / N Sync ~ 11,069,789
9. Falling Into You / Celine Dion ~ 10,614,005
10. ...Baby One More Time / Britney Spears ~ 10,472,878

1991-2002 list

1. Come on Over / Shania Twain ~ 14,490,470
2. Jagged Little Pill / Alanis Morissette ~ 14,084,425
3. Metallica / Metallica ~ 13,332,320
4. Millennium / Backstreet Boys ~ 12,030,804
5. The Bodyguard / Soundtrack ~ 11,714,440
6. Supernatural / Santana ~ 11,165,842
7. Human Clay / Creed ~ 11,078,203
8. No Strings Attached / N Sync ~ 11,023,057
9. Falling Into You / Celine Dion ~ 10,525,873
10. ...Baby One More Time / Britney Spears ~ 10,416,070

1991-2001 list

1. Come on Over / Shania Twain ~ 14,147,017
2. Jagged Little Pill / Alanis Morissette ~ 13,890,054
3. Metallica / Metallica ~ 12,981,888
4. Millennium / Backstreet Boys ~ 11,971,132
5. The Bodyguard / Soundtrack ~ 11,689,093
6. Supernatural / Santana ~ 10,961,112
7. No Strings Attached / N Sync ~ 10,891,514
8. Human Clay / Creed ~ 10,490,972
9. Falling Into You / Celine Dion ~ 10,438,190
10. ...Baby One More Time / Britney Spears ~ 10,269,049

1991-2000 list

1. Jagged Little Pill / Alanis Morissette ~ 13,542,393
2. Come On Over / Shania Twain ~ 12,110,660
3. Metallica / Metallica ~ 11,715,533
4. Bodyguard / Soundtrack ~ 11,605,690
5. Falling Into You / Celine Dion ~ 10,224,282
6. Cracked Rear View / Hootie & the Blowfish ~ 9,817,666
7. Titanic / Soundtrack ~ 9,806,175
8. Millennium / Backstreet Boys ~ 9,445,732
9. Ropin’ The Wind / Garth Brooks ~ 9,370,863
10. Backstreet Boys / Backstreet Boys ~ 9,258,265

1991-1999 list

1. Jagged Little Pill / Alanis Morissette ~ 13,542,393
2. Come On Over / Shania Twain ~ 12,110,660
3. Metallica / Metallica ~ 11,715,533
4. The Bodyguard / Soundtrack ~ 11,605,690
5. Falling Into You / Celine Dion ~ 10,224,282
6. Cracked Rear View / Hootie & the Blowfish ~ 9,817,666
7. Titanic / Soundtrack ~ 9,806,175
8. Millennium / Backstreet Boys ~ 9,445,732
9. Ropin' the Wind / Garth Brooks ~ 9,370,863
10. Backstreet Boys / Backstreet Boys ~ 9,258,265

References

Nielsen SoundScan