When you insert a CDG into a compatible player:

A "KJ" (Karaoke Jockey) could now carry 500 songs in a small binder rather than a crate of heavy 12-inch discs. The Experience:

Karaoke (Japanese for "empty orchestra") was invented in 1971 by in Kobe, Japan. Early karaoke machines used 8-track tapes or laserdiscs to play instrumentals, with lyrics printed in a songbook or displayed on a small TV screen via a separate video signal. But syncing lyrics to music was crude, and systems were expensive and bulky.

: CD+G uses the "Red Book" audio standard but stores graphic information in the disc's subcode channels (specifically R through W), which are typically unused on standard audio CDs.

Let’s break down the term. stands for Compact Disc + Graphics . Technically, the format is known as CD+G (Compact Disc plus Graphics).

This "graphics channel" is incredibly low-tech by modern standards. It is a slow, 4-color (or dithered 16-color) stream of data that changes about 8 times per second. Your CDG player reads this data and paints the lyrics on your screen, changing color exactly when the singer is supposed to sing.