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Can You Play PS3 Games on a PS4?
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How to play ps3 games on ps4 - YouTube
How to Upgrade PS3 Games to PS4 Versions | Tom's Guide
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PS4 Backwards Compatibility: Can You Play PS1, PS2, and PS3 Games on PS4?
PS5 patent teases PS1, PS2, PS3, PS4 backwards compatibility
Sony PS4 vs PS3 | Trusted Reviews
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