Hi, I did other file test just to check my previous test. Here is the result: MacbookPro 15" Retina (mid 2014), 2,5Ghz,16 gbyte Ram, Nvidia 750GTM Original filelength: 1m26 secSize: 859 885 665 bytes EditReady Conversion time 3:08 Size: 6 063 430 470 bytes / 564,35 mbits iFFmpegConversion time: 4:18Size: 7 415 829 539 bytes / 690,22 mbits WonderShare:Conversion time: 4:57Size: 5 914 414 404 bytes / 550 mbits Check the histogram of all the converted files EditReady iFFmpeg Wondershare