Apple products support limited formats, iPhone 4 is no exception. Most Videos downloaded from Youtube, facebook or other video-sharing websites are flv or f4v formats. These videos can’t be played by iPhone 4. Generally, our family enterment videos are camera AVCHD or MOV formats. Meanwhile, most VOB and M2TS movies are ripped from Blu-ray or DVD discs. All these videos can’t be supported by iPhone 4.
If you want to put such videos on iPhone 4, it seems no other better way, you have to convert these videos to iPhone 4 liked formats. In this case, Pavtube video converter is necessary. This tool is easy to use and base on its CUDA technology, the conversion speed will much faster. Now, just follow me to realize it.