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19 on a 25 gb blu ray disc and 38 on a 50 gb blu ray disc
A blu-ray disc player is a disc player that plays blu-ray discs and DVDs. They usually used with TVs.
I am almost certain that Sony developed Blu-Ray.
No. You can play regular DVDs with a blu-ray player.
The first Blu Ray disc was made in 1996. The Blu Ray movies were released commercially in the year 2000.