Guba, which runs a television-show and movie download Web site, is trying to boost its customer count by offering a 25 cent bounty each time a user refers a friend who signs up for the service.

Users sign up at Guba.com for the program and then can use e-mail, a blog or Web page to tell a friend about the service, the company said Tuesday. The offer follows Guba’s decision to slash prices on some downloads this month.