Disc Formats
All Blu-ray players can play commercial Blu-ray discs and standard DVDs. But you'll need an Ultra HD Blu-ray player to play 4K Ultra HD Blu-ray discs. ... Some Blu-ray and DVD players are "universal" models that can play higher-resolution SACD and DVD-Audio discs.
What happens if you put a DVD in a Blu-Ray player?
Why Blu-ray Disc Players Can Play DVDs
When you place a DVD into a Blu-ray Disc player, it activates the red laser assembly so that the DVD can be read. When you place a CD into a Blu-ray Disc player, the same red laser assembly used for DVDs is refocused to read the CD.
Does Sony Blu-Ray player play DVDs?
The Blu-ray Disc® player does not support HD DVD format. Only an HD DVD player can play HD DVD discs. NOTE: Sony does not manufacture HD DVD players.
