I just installed my new dvd burner but the burnt dvds will only play on the computer and not the dvd player. I tried on multiple DVD players but it will only seem to play on my computer. Is it because I am using DVD+Rs and not DVD-Rs?

It all depends on your DVD player, your burner, your software, and the brand and type of recordables you use.
Some players won't accept any recordables or rewritables, others accept only certain types and recorded using specific protocols.

Check your manual for what will and will not work (and even then there's no guarantee).

That's the cost of having several competing "standards". Of course copying DVDs is illegal.

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