
This is simply due the fact that those AVIs have been compressed using a different codec and your computer has a codec installed already for the ones that work - and you need to install a new codec to open the one that refuses to play. To summarize: it is common that your computer can play some AVIs without any additional software needed and meanwhile refuses to play some AVIs. Luckily, there are easy ways to get around it. There are hundreds or thousands of codecs in the world, so it can be an overwhelming task to test them each out individually. Therefor, to open the AVI, you need to know how the video was "coded", which means that you need to know what codec you need to use.

Codec is a small piece of program that plugs into your computer's operating system and allows the software installed on your computer to perform the "decoding" for the video that has been "coded" with the codec you installed. The person who put the video inside the video "coded" the video and the person who wants to open the video (that is you.) has to "decode" the video. Codec, as a word is an abbreviation of Coder / Decoder. The video inside the AVI is typically a compressed video stream that is made with a special tool, called as encoder. AVI is simply a file format, that doesn't itself define how the video inside the file was made and how it should be opened. One of the first terms a digital video freshman gets to know is codec. Each version of Windows ships with a video player software (called Windows Media Player), so that is not a problem. Follow the Guide Author on Twitter: video player and codec Generally speaking, playing an AVI requires two things: a video player software and a codec.

We try to address this question in this article as well as we can.
HOW TO PLAY AN AVI FILE MOVIE
The same question is being asked by many ways: "I downloaded a movie and it wont play", "AVI wont open!" and "This video doesn't work!" - all of them asking basically the same question.

HOW TO PLAY AN AVI FILE HOW TO
How to play AVI? is probably the most common question a person new to digital video asks.
