All Free YouTube to MP4 Converter is a multi-functional software program not only can play, accelerate and download regular/HQ/HD YouTube videos, but also convert YouTube to MP4 at last with high-quality video output. Apart from converting YouTube to MP4, it also converts YouTube to many other video/audio formats like WMV, WMA, FLV, MKV, 3GP, MP3, AAC, WAV etc. which can be supported by iPod, iPhone, Apple TV and various brands' mobile phones.