But there are also 3 "merge bits" between each EFM code, so this shouldn't matter? edit: The problem solved by scrambler is that number of pits and lands must

But there are also 3 "merge bits" between each EFM code, so this shouldn't matter? edit: The problem solved by scrambler is that number of pits and lands must be equal on average, or else drive couldn't distinguish pit and lands as dark/light decision signal level wouldn't be longer average of output signal. There is excellent description here: https://archive.org/download/CDCrackingUncoveredProtectionAgainstUnsanctionedCDCopyingKrisKaspersky/CD%20Cracking%20Uncovered%20-%20Protection%20Against%20Unsanctioned%20CD%20Copying%20-%20Kris%20Kaspersky.pdf https://archive.org/download/CDCrackingUncoveredProtectionAg..., page 33 in PDF under "Sync Groups, Merging Bits, and DSV" header)