MP4 Video Player for PC and Mac

1. If you expect that you can play a file that can not be played on QuicktimePlayer, you might be disappointed.

2. The purpose of this app is to provide features not to QuicktimePlayer.

3. You can zoom in/out without changing the window size.

4. You can seek by slider or button of the fixed value.

5. You can control the speed of forwards playback and backwards playback.