K-Lite Codec Pack is the kind of software you need, but it's also the one you want. Over the years, it has become an indispensable tool for any PC user who wants to watch a video, play audio of various formats or even simply be able to recognize a format they haven't encountered before.
Basically, K-Lite is a program combining a great deal of various media codecs, from classic video and audio to the more rare and complex formats. It's regularly updated to contain the latest versions and has a very flexible installation process that lets you select and un-select the codecs you wish to have. It even comes with Media Player Classic, a media player that's been the most used ever since K-Lite became a thing.
The pack works on every system starting with XP and has no problem functioning. media Player classic has full access to various rendering tools and can display any media file you want compatible with the installed codecs. You can always tweak and adjust your codecs using the codec tweaking tool. If you already have broken codecs and DirectShow filters installed, K-Lite identifies them and fixes the issues with a reinstall.
With many available versions containing various sets of codecs, regular updates, useful installation and playback options, supporting media player and great stability, K-Lite Codec Pack is the best media playback solution today.