The first problem faced by Windows users - playing all the variety of audio and video files that now exist. Microsoft is in no hurry to provide us with codecs to play movies and music, and search for a particular codec for each of the new files takes a lot of time, and often results in a completely wrong direction. I shared his thoughts on the bill as a once and for all put an end to this reshuffle.
For Windows 7, there is now a universal set of codecs, which does not cause errors, and is designed to work in this system - Windows 7 Codecs. It includes a variety of locations, including Russian, and all popular codecs for playback of any multimedia content. The set does not include any additional players and does not change during the installation, the file associations with programs.
For Windows Vista, there are a few universal sets. Vista Codec Package - a set of codecs, similar to the above. I am a long time working with him - it does not cause any errors. Just like the previous one, a set does not include any additional players. Any set of components can be excluded from the installation, but I would not advise to do it, because the set contains the latest versions of the codecs.
To both sets there x64 Components addonIntended, as already the name suggests, for installation in 64-bit systems.
For Windows XP, there is a stable and constantly updated K-Lite Codec Pack. It includes a set of various codecs and filters, as well as Media Player Classic. Since the codecs, filters and additional programs in it very much, there are three types of this pack, depending on the configuration: Basic, Standart and Full. It stated that K-Lite Codec Pack works on Windows 2000 / XP / 2003 / Vista. I would not advise to put it into Windows Vista and Windows 7, as were seen in the work of errors, but for Windows 2000-XP - it is the best choice, a panacea to deal with codecs times and forever and ever.