I just got some WD/SnaZDsik Blue shipments in July. I was testing with the HDTuner and also data integrity tests in a Nexto.
I think it wrote until full (3.7TB) and then a separate CFe copy/write to battery depletion at 1.7TB. Are you saying this is not accurate?
![CrystalDiskInfo_4TB_WD_Blue_2.png CrystalDiskInfo_4TB_WD_Blue_2.png](http://www.storageforum.net/forum/data/attachments/1/1087-424d08c63c1a8716dcc374e96ebdf2c5.jpg)