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msephtontoday at 12:06 AM0 repliesview on HN

Some early CDs were mastered with pre-emphasis. On players that don't recognise and correct (de-emphasize) this, the sound can sound full of treble. Every hardware CD player should be able to play such discs as intended. iTunes knows about such discs and will rip them correctly, maybe Foobar2000 and CUERipper, but most other software has no clue. I know The Blue Nile "Hats" it's one such disc in my collection. I believe some pressings of The Nightfly were mastered with pre-emphasis. https://www.tnt-audio.com/vintage/procrustes2_pt1_e.html