I changed the ShowGallery registry key in
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Media
Center\Settings\DvdSettings from "Play" to "Gallery" to replace the "Play
DVD" option with "DVD Library" option. Everything seemed fine. At some
point, the DVD Library option disappeared and I'm not sure what I did to
remove it from the TV + Movies section. I am using Vista Home Premium and I
have upgraded to SP1, although I'm fairly certain that the DVD Library option
didn't disappear with the SP1 upgrade. Does anyone know how to get that
option back to the TV + Movies section of Media Center? Any help would be
greatly appreciated.