This article will show you a step by step guide on how to find and download the right subtitles for your MP4 videos as well as add subtitles to MP4. In fact, this guide also applies to add subtitles to AVI, MKV, WTV, WMV, VOB, MPG, MOV, DV, FLV, WebM, OGV, and etc.You can find it at
http://www.avdshare.com/add-subtitles-to-mp4