To: FourWords
Dear user,
You can find the list of supported video formats following the link below:
http://onlinehelp.avs4you.com/AVS-Video-Converter/Features/Converting/ConvertingtoFormat/supportedformats.aspx
Video bitrate, frame rate, frame size and format may be different, you may choose any that is most suitable for you, but the higher the bitrate of the video - the higher its quality and size, note that please.
To reserve the quality of the video after conversion please choose the input file bitrate, frame rate and frame size for the output file, you can do it by clicking on the Advanced button of AVS Video Converter.
Please let me know if I can be of any further assistance to you.
Kind regards