Hey guys! Just a quick question I am really confused about. I have been searching for topics on whether my iPhone 4 with iOS 5 will support AC-3? I've heard you have to encode with one AAC and one AC-3 but with the AAC track first...?...idk I read a bunch of threads but they are dated and a bit confusing...I didn't think Apple liked multiple audio tracks in an .m4v container, especially when using it on a mobile device. I'm about to encode an Mkv which is in 6 channel discrete so I just want to know before I encode an 8gigabyte MKV into H.264...