In the old days, the codec pack for movie playback was badly behaved, and on the contrary there was something like going to be stupid because the movie that was playable until now can not be played ...
It guarantees that it does not contain spyware, adware, viruses, etc. It is provided as a free source under the GPL license as open source software. Also, it is safe because conflicts of errors and ...
If you have more than one computer–for instance, a desktop and a laptop–you may have encountered video files that run on one machine but not the other. That’s probably because of a codec conflict.