Yeah… I found the best free video converter for me finally. I downloaded and tried several free video converters. All of them have its own pros and cons. Finally, one that survives and matches my requirements ~ MediaCoder.

[pull_quote_center]MediaCoder is a free universal media transcoder since 2005. It integrates most popular audio/video codecs and tools in an elegant and transparent manner into an all-in-one transcoding solution. With a flexible and extendable architecture, latest codecs and tools are updated added in constantly. MediaCoder intends to be the swiss army knife for media transcoding in all time.[/pull_quote_center]