If Windows 7 is enabled to identify Real-format video files that have been installed with Windows 7, you will find that when using the built-in media center, the media library in the media center does not recognize video files in Real format. As one of the most popular video file formats, the Real format is believed to be widely used in many movies. Is it depressing that such a powerful and convenient media management tool is unavailable? Next we will teach you a way to easily break through the limitations of the Windows 7 media center. The implementation steps are illustrated in the rmvb format. Open start → run, enter regedit, and press enter to open the Registry Editor. Locate the HKEY_CLASSES_ROOT item and name it ". rmvb" (if this item exists, no new one is required ). The key value in the new string format is named "PerceivedType", and the value of this string is modified to "video ". After completing the preceding operations, exit the Registry Editor. Choose Start> Windows Media Center> movie library ". If an rmvb file is in the monitored folder, it can be identified by the media center and displayed in the list. The process for adding other file formats is similar to the above. We can also export the above rmvb registry entry as a REG file. When registering a movie file in another format, we directly modify the file ". rmvb is the desired format, and then you can save and import the Registry to complete format registration. Is it much simpler. During the test, we also found that when searching for movie media, media centers rely solely on file extensions for identification. That is to say, if you do not want to perform registry operations, you can directly change the rmvb file extension to the format supported by the media center (such as wmv and mpg), and the file can also be recognized by the media center, of course, if there are many files, this method will be quite troublesome.