Los Angeles and New York dominate the nation in terms of DVD buying this year, according to the VideoScan data tracking service. As of December 26, Los Angeles leads the nation with 1,858,000 units sold. New York is a close second with 1,845,000 units. Chicago (1,114,000) and the San Francisco Bay Area (1,042,000) lag slightly behind. By contrast, smaller cities such as Charlotte, North Carolina (154,000), Pittsburgh (134,000) and Portland, Oregon. (194,000), are minor players in the DVD sales game. Where's the lowest concentration of purchased DVDs? The area comprising Johnstown and Altoona, Pennsylvania Only 12,000 DVDs have been bought in that region. The total for the year: 21,406,232.