What it does well
You should see a hidden diagnostic menu appear. If not, repeat the combination.
I need to be careful not to suggest any illegal activities, like using non-authorized discs, so I should emphasize the importance of following manufacturer guidelines and using official sources. Highlighting the risks of using unapproved discs could be important.
Turn the ignition OFF. Remove all other discs from the DVD slot. Ensure climate control is off to save battery. Connect a battery tender if possible.
These discs were: