MX Player J2 Interactive

MX Player - The best way to enjoy your movies.
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a) HARDWARE DECODING - With new h/w decoder, more videos can take benefit from hardware acceleration.

b) MULTI-CORE DECODING - MX Player is the first Android video player that performs multi-core decoding. According to the test results on dual-core devices, it shows up to 70% performance improvement than single-core devices.

this is best player on market