WonderFox HD Video Converter Factory Pro is the perfect program to change video bitrate. It allows you to lower and increase video bitrate as you want. With it, you can easily change the bitrate of MP4, MKV, MOV, AVI, etc. Besides, if you wish to change audio bitrate, this software can also get the job done in a breeze. Apart from changing bitrate, HD Video Converter Factory Pro offers many more practical functions, such as video compressing, movie downloading and screen recording.