What is MediaInfo
MediaInfo is a file analysis program that tells us what video and audio codecs are used, as well as other characteristics. Primarily, it is used to analyse a file that cannot be opened by MEP to reveal what codecs the file was created with. Armed with this information, you can find and install the correct codecs into Windows to enable MEP to open your file.
The MediaInfo homepage is here: http://mediainfo.sourceforge.net/en
Using MediaInfo to analyse a video file
Start MediaInfo from the Start menu and then open the file using File>Open.
(Alternatively, right-click on the file. MediaInfo should be on the Right-Click menu, or click Open With... and browse to and select MediaInfo. MediaInfo will then be on the right-click Open With... menu for next time).
MediaInfo will display a heap of video and audio information about the file, including the codecs used.
An example screenshot:
This shows the analysis of a DivX AVI. Note the codecs.