Software - 43CodecsA codec is software that is used to compress or decompress a digitalmedia file, such as a song or video. Windows Media Player and otherprograms use codecs to play and create digital media files.For example, when you rip a song from an audio CD to yourcomputer, the player uses the Windows Media Audio codec tocompress the song into a compact WMA file. When you play thatWMA file (or any WMA file that might be streamed from a Web site),the media player uses the Windows Media Audio codec to decompressthe file so the music can be played through your speakers.Why do I get a message that says my computer is missing a codec?If you get a message that says that your computer is missing a codec, itmay be because you are using a file that was compressed using a codecthat Windows or the media player does not include by default. In manycases, you can download and install the missing codec by clicking onthe Web Help button in the error message.Please also see WindowsHelp and Support for more information.Playing DVD moviesYou can play DVD movies on your computer.1. Insert the DVD.Important! When you launch the DVD player for the first time, theprogram asks you to enter the region code. DVD content is codedwith one of six regions. Please refer to the table below for DVD