Dolby Digital AC3 is mainly used on DVD, Blu-ray, home cinema, etc. AC3 is covered by patents and decoding AC3 needs to pay a commercial license, which causes some device or audio app developers to ban AC3 from their products, among which the most typical example is Apple products. Apple products, like iPhone, iPad, Apple TV, iTunes, QuickTime, etc can not support AC3 audio. What’s worse, the container formats, like MKV, MP4, AVI, MXF, MOV, 3GP, etc,  contain AC3 audio within can not be played by the above said Apple products either. On the contrary, AAC audio can be played by Apple products well. If you need to convert AC3 Continue reading How to Convert AC3 Audio in MP4/MKV to AAC Easily→