You can select a wide range of possible compression codecs for the audio/sound here. In general many codec have a setting 'bitrate' or 'quality' and generally the higher you select the larger the file size of the outout video and the better the appearance of the video. The individual settings are highly variable and depend on the particular codec. These are accessed by pressing the button 'Video Compression Settings'. For additional codecs please refer to Third Party Codecs.Įach compression codec can have internal setting that can affect size and quality of output.If you have Windows Media Player 9 or 10 on your computer, you have these additional codecs available to you.If you have Windows XP, see here for a list of codecs that are available for use.For more information about codecs for Windows Vista,7 & 8, view Microsoft's codec FAQ page.There are many codecs that come pre-installed in Windows and many more that can be separately installed (DIXV for instance). These control how the video is saved and heavily affect the size of the output video and also the quality of the output. You can select a wide range of possible compression codecs for the video here. Therefore, if you don't have the same codec that was used to make the AVI video, you won't be able to play it.Encoder Options for AVI Files Encoder Options for AVI Files Video Compressor Encoding and decoding is performed using a 'codec.' A codec, which is actually an abbreviation for 'Coder / Decoder,' is a small program that allows your media software to pack and unpack video files.Basically, the data was compressed a certain way, and your computer needs to unpack it in the exact same way for it to be usable. To play back a video file, your media player software will have to decode the data using the same algorithm used to encode it.This means that it will be compressed using a certain algorithm to reduce it to a manageable size. When raw video data is saved into a computer file, it needs to be encoded. The first step to understanding why AVI files can be so fussy is to understand what encoding and decoding are.It simply 'contains' the data in a shell that will be familiar to the user and to your software.

AVI is what's called a 'container format,' which means it doesn't specify how the video and audio contained within it was encoded. Familiarize yourself with how the AVI file format works.

Codec for avi files