How do you use MacX Video Converter to transcode videos among HD MKV, M2TS, AVCHD, UHD 4K 2016p and SD MP4, MOV, FLV, MPEG etc.? Free download the Mac video converter and follow this guide to encode/decode videos to Mac, iPhone, iPod, iPad, PSP, Samsung Galaxy, Huawei, Xiaomi, etc.