4 ms·There's no lack of DVD drives, they are widely available on Amazon, BestBuy, eBay.by bufferoverflow 5y agoThere's no lack of DVD drives, they are widely available on Amazon, BestBuy, eBay.handrous 5y agoThey're also pretty cheap ($15-30), powered fully over USB—no extra power cable like in the old days—and they're tiny.fomine3 5y agoNote that for restore purpose, generally slim drives aren't good to read not good quality discs. Better to buy 5-inch bay sized drives.