And RHO team propose to adjust spec with the neutral yield on WPE, BER, OVW and ADC in CM4L media. (discuss since Sep'14)
Thus, we propose to use the new spec on CM4L with the neutral yield (adjust WPE, BER, OVW, ADC spec) around WW41 due to we have G9LT media around 300 discs then we plan to migrate the CM4L media onward ka.