I've always had a soft spot in my heart for demos and promo discs - for a good handful of systems I've hunted down rare and unknown discs from many countries all over the globe. I don't have a rare demo to show you today for CD-i, but one of many neat CD-i "demos".
An interesting thing about CD-i as a console - likely due to budget - is that there weren't a lot of real, actual playable demos released. "Demonstration Discs" were full builds of the games that were actually what is commonly referred to as "promos" (for press). Most CD-i "demos" were actually rolling 'demo' promo commercials - and more often than not, released in VCD format.
The vids on the disc.
Among the videos is one promoting the unreleased kids game "Tom & Tim":
Artwork for the unreleased title.
