MP4 is a popular video format supported by most apps and smart devices. Since videos may come in various formats (AVI, WMV, MXF, FLV, F4V, VOB, DAT, DVD, etc.), it will make sense to convert video to MP4 for playing on changeable devices or systems. Follow this PPT to convert video to MP4 on PC/Mac. As a result, the output MP4 can be played on PC, Mac, iPad, iPhone, Nexus 7, Kindle Fire, Nook tablet and more devices.