If you've got an old DVD or vinyl collection at home it might be time to dig it back out - the classics are becoming cool again, and it's big business.

It's the great retro revival, where everything old is new again.

Just a few years ago, retailers were thinking about exiting the DVD market. But instead of sales plummeting, they've gone up and you can get portable players, projectors and the classic DVD player from Laser Corporation for as little as $39.

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