CD-i Digital Video used the same video/audio formats, and almost the same file structure, as VCD 2.0, but was being used by 1991, two years before VCD on its own debuted.

https://en.wikipedia.org/wiki/CD-i

https://www.discogs.com/search/?format=CDi

CDi is a common but unofficial spelling. Here's an example of a CD-i that currently can't be cataloged properly: https://musicbrainz.org/release/dfb14253-36c3-4154-a65d-05c5af76d660