See also: Weekly Blu-ray Sales Chart - Weekly DVD and Blu-ray Sales Combined Chart - DEG Watched at Home Top 20 - Netflix Daily Top 10

United States DVD Sales Chart for Week Ending September 14, 2008

  TitleUnits
this
Week
%
Change
Total
Units
Spending
this
Week
Total
Spending
Weeks
1 new The Forbidden Kingdom 501,129   501,129  $10,191,260  $10,191,260 1
2 new Baby Mama 498,931   498,931  $8,975,769  $8,975,769 1
3 new Barbie and the Diamond Castle 289,351   289,351  $3,744,202  $3,744,202 1
4 (-) Grey’s Anatomy: Season 4 225,545   225,545  $8,331,632  $8,331,632 51
5 new Smallville - The Complete Seventh Season 212,511   212,511  $8,073,293  $8,073,293 1
6 (2) Little Mermaid - Ariel's Beginning, The 125,361 -65% 1,464,711  $2,505,966  $25,358,625 3
7 (1) The Office: Season 4 114,107 -73% 531,593  $3,530,471  $16,468,362 51
8 (3) What Happens in Vegas 93,065 -58% 826,657  $1,878,871  $16,690,365 3
9 (4) Heroes - Season Two 80,817 -42% 612,325  $2,019,617  $15,282,407 3
10 new It's Always Sunny in Philadelphia - Season 3 80,294   80,294  $2,086,841  $2,086,841 1
11 (5) The Nightmare Before Christmas 65,899 -49% 468,705  $1,581,121  $11,212,792 563
12 (7) Camp Rock 52,657 -34% 802,210  $789,328  $12,017,315 4
13 new Thomas & Friends: The Great Discovery 46,899   46,899  $841,368  $841,368 1
14 (8) Street Kings 41,455 -41% 496,825  $838,846  $10,056,394 4
15 (16) House, M.D. - Season Four 39,466 -17% 317,929  $1,301,983  $10,488,478 4
16 (12) Transformers 37,320 -37% 14,125,542  $540,259  $266,374,197 48
17 (11) Bait Shop 36,431 -41% 97,902  $617,141  $1,661,533 2
18 (6) Supernatural - The Complete Third Season 35,593 -66% 140,572  $1,387,771  $5,480,902 2
19 (-) The Big Lebowski 35,488   2,396,504  $675,692  $23,056,965 516
20 (15) Hannah Montana/Miley Cyrus - Best of Both World… 34,023 -31% 584,374  $748,166  $12,850,385 4
21 (14) 21 33,185 -33% 1,378,515  $530,628  $22,042,455 8
22 (-) Batman Begins 32,138 +25% 3,277,288  $286,671  $39,529,166 152
23 (13) Scorpion King 2: Rise of a Warrior, The 32,086 -41% 416,396  $518,471  $7,127,877 4
24 (10) Next Avengers: Heroes of Tomorrow, The 30,778 -50% 92,584  $459,823  $1,386,295 2
25 (22) Harold & Kumar Escape from Guantanamo Bay 30,725 -25% 907,353  $667,783  $20,180,683 7
26 new Ugly Betty: The Complete Second Season 30,149   30,149  $1,113,704  $1,113,704 1
27 (23) Prom Night 29,888 -27% 278,873  $571,772  $5,022,549 4
28 (30) Dexter: Season 2 29,417 +6% 242,740  $735,131  $5,948,690 51
29 (26) Nim's Island 28,527 -24% 854,273  $516,233  $15,372,424 6
30 (-) Never Back Down 28,264 +51% 580,487  $538,907  $11,352,022 7

Our DVD and Blu-ray sales estimates are based on weekly retail surveys, which we use to build a weekly market share estimate for each title we are tracking. The market share is converted into a weekly sales estimate based on industry reports on the overall size of the market, including reports published in Media Play News.

For example, if our weekly retail survey estimates that a particular title sold 1% of all units that week, and the industry reports sales of 1,500,000 units in total, we will estimate 15,000 units were sold of that title. The consumer spending estimate is based on the average sales price for the title in the retailers we survey.

We refine our estimates from week to week as more data becomes available. In particular, we adjust weekly sales figures for the quarter once the total market estimates are published by the Digital Entertainment Group. Figures will therefore fluctuate each week, and totals for individual titles can go up or down as we update our estimates.

Because sales figures are estimated based on sampling, they will be more accurate for higher-selling titles.