forgot that 4 of them were git repos :skull

games/champion-island/low/README.txt

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+Low quality variant from the original build.
+The high quality stereo versions were taken from https://www.youtube.com/c/qumumusic/videos, the main composer of the game.
+
+There are also high quality variants for the other tracks but it's a pain as they also embeded sound effects in there too.