NEW guide for M-X player will help you in lot of things to use it better also MX Player.
With MX Player you can:
1) DECODING EQUIPMENT - With the new HW decoder, more videos can benefit from hardware acceleration.
2) DECODE MULTI-CORE - MX Player is the first Android video player that uses the multi-core decoding. According to test results on dual-core devices, we get a performance gain of 70% compared to single heart devices.
3) PINCH TO ZOOM, ZOOM AND PAN - Zoom easily in front and back, pinching and dragging across the screen. Zoom and Pan also optionally available.
4) SCROLL OF CAPTION - Drag the text forward / backward to move to next / previous text, up / down to move the text up or down, pinch to zoom in / out to change the text size.
5) KIDS LOCK - Let your kids have fun without worrying that they make calls or launch other applications.