No Sound Playing MPEG files

[Alfred Kaufmann]

I am running Vista Home Premium 64bit SP1 and noticed that when I play
and MPEG files I have no sound. I though this might be a problem with
the Microsoft media player but I get the same result with another
media. The files used to play just fine and I do not know when the
problem occurred.

Any suggestions on what to do would be appreciated.
Al

[dev@null.invalid]

It is possible that a needed codec (compressor/decompressor file) has
become corrupt, or been deleted.

This article, among others that can be located via http://google.com,
may help you solve the problem...
http://www.updatexp.com/codec-for-wi...-player-10.htm

[Wolfgang]

You might want to check your soundcard settings. Mine switched back to
"speaker output". Used to the digital output, I had no sound at first at all
until I saw the change in the settings by SP1.

[Clevo]

This happens when codec packs have been installed...with codec pack
yuou only need to install the ones you need at the time...

[zachd [MSFT]]

Not a bad point, considering that the system should have had fully
functional MPEG playback previous to any codec pack installation.

You can check installed MPEG codecs using WMP's Help:About:Technical Support
Information menu tool.