Some times i make some videos (tutorials) then try to Convert them .
the only problem i got is about the codec of videoand many of my friends ask me about it.
so i make some searches on web and find the best Solution is Media info
MediaInfo is a convenient unified display of the most relevant technical and tag data for video and audio files. it is an Open Source Software... and if you are using K-Lite Codec Pack you will Find Media-info Inbuilt With new GUI
Personally i like the K-lite Inbuilt GUI Media Info
and i have to it Since i am Using K-lite Codec Pack.....
you may try Both of them and Decide which one is better....