iPhone 4, much slimmer and smarter than iPhone 3GS. Like the iPhone 3GS, iPhone 4 can support H.264, MPEG-4, MP3, protected AAC, AAC, Apple lossless, AIFF and WAV files.
However, there are still a bundle of video files that can’t directly play on iPhone 4, such as AVI, FLV, VOB, MKV, etc. That’s to say, the only way to solve the problem is converting original video to iPhone 4 acceptable file formats.
The Cucusoft iPhone Video Converter should be your ideal choice, which is specially designed for iPhone 4 users to effortless convert almost any video AVI, WMV, FLV, VOB, MKV, MPEG, to iPhone 4 supporting H.264, MPEG-4 or audio format MP3, AAC, etc.
