You can play a DVD in Windows 10 for free with a little help. But that help’s probably best if it doesn’t come from Microsoft. I’ll tell you how Microsoft’s solution sort-of works for some people.

What's the price of convenience? Exactly $120, if you're buying the useful new DVD Movie Writer dc3000 from Hewlett-Packard . The DVD Movie Writer at $399 (www.hp.com) is an external DVD recorder, or ...