Well acshually… anything above 6x wasn’t actually what it said on the tin. CD data starts from the inside ring, and there’s a physical limit to how fast you can spin a plastic plate before it tears itself apart. So you only got the full 52x speed at the very last part of the burn on the outer ring, and even then only if you filled the whole disk.
Back in my day, we used the 52x to burn 52 discs simultaneously at 1x speed.
Well acshually… anything above 6x wasn’t actually what it said on the tin. CD data starts from the inside ring, and there’s a physical limit to how fast you can spin a plastic plate before it tears itself apart. So you only got the full 52x speed at the very last part of the burn on the outer ring, and even then only if you filled the whole disk.