Reeling from the birth pains of the digital age, the music industry has been looking for a way to survive. CBS may have found that solution in the form of Last.FM, the radio site it bought last year.

According to a report in The New York Times, Last.FM and CBS are offering ad-supported music that lets users listen to their favorite songs for free in exchange for looking at ads. Unlike services like SpiralFrog, which have had trouble gaining traction, the CBS/Last.FM approach seems relatively simple.

But there is one big catch. While users can choose any of the site's 3.5 million songs, they can only listen to each song three times. Quincy Smith, the president of CBS's digital unit, said he's working to get record labels to extend the limit.