Best music browsing mecca

Used CD marts abound in Dallas, and merchants ranging from Wherehouse Music to CD Warehouse to Half Price Books have selections of used product. But where do the most fervent music lovers go to locate their much-desired discs? We point to CD Source in the Old Town Shopping Center, which boasts excellent selections of jazz, folk, blues, Latin, and other genres as well as good old rock and roll. CD Source seems to defy the cardinal rule of used CD shops, which is that people trade in crap they don't want, making for crappy selection and plenty of copies of Live's Throwing Copper.