Why does my laptop dvd player only play some dvds?

im not really sure exactly but from what I’ve heard from friends some dvds just cause problems in different laptop\pc’s, sorry dont have an answer =\

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The reason the DVD’s don’t play on one laptop - or dvd player - is usually the regional encoding that’s built into the DVD player itself (or computer). There are I think 5 regions…DVD’s from the region that your dvd player is from (eg, the USA) will play fine. But, if you buy a real, non pirated DVD from a store in say, Tokyo, it may not play, as it’ll be a different region that the DVD player you’re trying to play it on.

Some computers allow you to change the region it’s set to…however you can only do that a few times, as they’re trying to combat piracy, which is why you can’t switch it anytime you like. Sorry it took a while for you to get a thorough explanation of the problem.