A Florida man who made millions of dollars selling illegal copies of computer programs was sentenced Friday to six years in prison in one of the nation’s largest software piracy cases.

Danny Ferrer, of Lakeland, Fla., pleaded guilty in June to conspiracy and copyright infringement charges after an FBI investigation of his Web site, BuysUSA.com. Ferrer also was ordered to pay more than $4.1 million in restitution to software makers Adobe Systems Inc., Autodesk and Macromedia Inc.