Browsing Chinese (Simplified) translation

13.

Ask the person having problems with playback if they have the right codec installed. They may find it helpful to search the web for the name of the codec plus the name of their video playback application. For example, if your video uses the <em>Theora</em> format and you have a friend using Windows Media Player to try and watch it, search for "theora windows media player". You will often be able to download the right codec for free if it's not installed.