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Only the CD had uncompressed data.

CD's have repatterened uncompressed data using scrambling codes to keep the waveform stable (i.e. ~50% on/off)

And a Laserdisc with digital sound literally has that CD audio EFM waveform in the lower frequencies.

CED, not CD. And LDs most definitely also have uncompressed data, resulting in visible text at 22:30 in the video.

This is where we get into semantics, but it sort of has compressed color data, in the analog domain. :)