The latest versions of all major browsers are able to play sound files and videos without any additional codecs or software.
Internet Explorer 9 (optionally) and later versions also available on Windows 8 (default) support plug-in free browsing, which will break playback due to use of Flash for audio playback.
Windows Phone 8.1 and earlier are not supported. Windows 10 Mobile will be supported in the Edge browser, but does not yet work in preview builds.
To play downloaded files outside a web browser, you will need to install playback software. By default you can use the Windows Media Player, but you need extra codecs (see below). You can also use one of the free media players supporting these files, e.g., VLC media player.
Now you have to download a necessary extension (codec), so that your media player will be able to play sound and video files with the Ogg Vorbis file type (sound files) and with the Ogg Theora file type (video files).
- Load this web page and click on the download link next to Windows 32/64-bit Installer.
- After you download it to your hard disk, open the file and follow the installation guide.
Do you have further questions, or did you encounter problems?
Ask in this Talk Page.