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The Media Center application behaves in the same manner. Neither C:\Users\Public\Music\Sample Music\Sleep Away.mp3, C:\Users\Public\Videos\Sample Videos\Wildlife.wmv or any other of the mp3 and wmv samples will play, giving me the same error. Some files still play though, for instance the C:\Users\Public\Recorded TV\Sample Media\win7_scenic-demoshort_raw.wtv video sample. This is for standard mp3 and avi files as well as a bunch of other media file types. The Player might not support the file type or might not support the codec that was used to compress the file.". The next time I started WMP to play music I got the error message: "Windows Media Player cannot play the file. I installed Apple iTunes (and Quicktime) and uninstalled the Nokia Music Manager application (which had been with me from the Vista upgrade). The new media player got hold of all media files in my new Libraries, and was able to play almost every file I got, more than Vista used to, including regular mp3, avi and wmv files.
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The upgrade went smooth and everything worked as it should. I upgraded my Windows Vista 圆4 installation to Windows 7 RTM 圆4 a few days back.
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