Well, CD-i member Orlando Arroyo shared with us some more CD-i titles that were labeled 'Digital Video Optional'. Let's have a look:
First, there's Cartoon Carnival. This was a FunHouse CD-i title that plays as a base-case CD-i title, but when a DVC is installed, the videos (that are given when you win one of the minigames) are showed full-screen! It seems on some copies they added an extra sticker (as you can see on the cover picture) to clearify that this title is "Digital Video Enhanced". The same trick works in Strip Poker Live. It is nicely stated on the boxart this time:
The scenes with the ladies are in fullscreen mode when a DVC is installed. But this is not neccessary to play the game. If there's no DVC present, the same videos are presented on a much smaller screen.
From the manual:
Another example is the "Cranberries Doors and Windows" Rainbow CD. As it sais, this was not a dedicated CD-i, but a new kind of hybrid CD, being playable on CD-i but also on CD-ROM and as an audio CD. One extra feature was that this title was playable on a base-case CD-i player, as well it could benefit from the video playback of the DVC: The Zombie video was full-screen with a DVC, small-screen on a base-case CD-i player.
