Another resource has Datawrite yellow 8x -R as CMC (CMC MAG AE1), not MCC
Liteons are reputedly much better with +R than with -R.
What is your drive? 411S or 451S
I wonder if there is adequate coverage of 8x media in 4x drive firmware, though even with the crossflash hacks, none of the 4x or old-series 8x Liteons go above 4x on -R media.