When it comes to CD-based consoles, one thing that I've
always been very fond of is a system's audio CD player screen and visualizer (if any). It's just something that's fascinated me for a long while.
One of my favorite resides on the Sega Saturn.
The CD player controls are creatively displayed onscreen as spheres, and when a track plays, a starship navigates its way through the cosmos. Great little easter egg on the Saturn.
Also of note are the visualizers for the PS3, 360, Dreamcast, and Jaguar.
What does the PC-FX’s CD player interface consist of? Are there any kind of visuals?