The description "AVI file" does not describe a single format.
AVI files can contain audio and video in many different
formats.
If RealPlayer can play only some of the selected file, this warning
notifies you that only part of the requested
file is playing back (for example, just the audio or just the video, but
not both).
Partial playback occurs when your system does not have the requiredcodec
installed to play back the audio or video portion of the file. If you are having problems viewing the video portion of your file, it is
most likely using the DivX codec. Although other
video codecs can cause the warning, DivX is the most common.
To get the latest DivX codec, go to http://www.divx.com
and download the latest DivX codec pack from their site, which will include
their codec.
If, after installing DivX, you are still unable to play both audio
and video, contact the creators of the file and find out which codec they
used and where it can be obtained.
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