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Why can't I play CDA files?
The .cda (CD Audio Track) file isn't registered to be opened by Windows Media Player. You can register the Player to play CDA files by doing the following:
1. In Control Panel, open Folder Options.
2. In the Folder Options dialog box, click the File Types tab.
3. In the Registered file types list, scroll down to the CDA extension to see which program is registered to open the file type. The associated program, shown in the following Details for 'CDA' extension area, should open whenever you place a CD in your CD drive or when you double-click a CDA file. If no program is displayed, register the Player by completing this procedure.
4. In the Details for 'CDA' extension area, click the Change button.
5. In the Open With dialog box, select Windows Media Player as the program that you want to use to open CDA files.
6. Make sure that the Always use the selected program to open this kind of file check box is selected.
Note that the actual music tracks on a CD are usually WAV files that you can't see; the CDA files on a CD act as a table of contents for software that "point" to these hidden music tracks. If the Player is registered to open CDA files, but you still can't play the CD, the CD may not have been created using CD-burning software (that is, the CDA files, but not the music files, were copied to the CD).
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