"It would have made sense seven years ago in the analog age," he said. "But now...when we can deliver our own content direct to our own devices...the content that we have finally becomes an advantage to our own devices."
Separately, Stringer said he thinks the movie production business remains a good business.
"People want to see movies," he said. "Movies are as popular as ever."
Stringer has been working to turn around Sony's operations since being named to the top post at the Japanese company in 2005. After shedding unprofitable businesses, trimming jobs, and closing plants, the efforts are beginning to show some signs of traction.
Although the company's latest quarterly earnings were down from a year ago, the company raised its earnings forecast for this year, citing brighter prospects for its electronics unit.
Stringer said he expects momentum is "gathering" for its next-generations Blu-ray Disc DVD product.