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For Windows Vista:
Open Registry Editor (Start, Run, REGEDIT) and navigate to:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Media Center\Settings\DvdSettings
Double-click the key ShowGallery and change the value from “Play” to “Gallery”.
For Windows 7:
Don’t need it, it’s already built this way.
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Microsoft, Media Center
media center