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Cinemasteraudio.dll for WMP 10; MyDVD vs DVD Decoder Pack



WMP10 will not play MPEG-2 based DVD's without a codec, such as installed by Cineplayer DVD Decoder Pack.


Sonic MyDVD V9 Studio Premier requires that you remove Cineplayer DVD Decoder Pack before installing Studio premier which installs a file that crashes WMP 10. The identified file is Cinemasteraudio.dll; internal version is The following procedure fixes the problem; Cinemasteraudio.dll version is installed by Cineplayer DVD Decoder Pack.


If installed, remove Sonic MyDVD V9 Studio Premier and then Cineplayer DVD Decoder Pack.


If you're paranoid, verify that C:\Program Files\Common Files\Sonic Shared\ does not contain Cinemasteraudio.dll or Cinemastervideo.dll. If there is, good luck finding out who installed them.


Reinstall Sonic MyDVD V9 Studio Premier.


Open a command window





in the command window type



cd C:\Program Files\Common Files\Sonic Shared\

regsvr32 /u Cinemasteraudio.dll

regsvr32 /u Cinemastervideo.dll



create a sub-folder C:\Program Files\Common Files\Sonic Shared\problem\


move those files into the newly created sub-folder.


install your Cineplayer DVD Decoder Pack 2.3.1 and MPEG-2 playbacks such as DVD's should work again.

Here is a zip file with all the file types I use to verify correct operation of WMP. Most of these come from http://support.microsoft.com/kb/316992; a few I cobbled together.


Apply the fix for DivX if you use it, titled "HowTo fix both DivX and EMC 9"; last found at



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