At the last FCP-4 working group meeting the use of Enable Modify Data Pointers (i.e., data overlay) was questioned. I myself have never see the use of data overlay in the FCP realm (other than via FCP-2+ error recovery which is strictly not considered data overlay).

Please respond if you object to obsoleting the EMDP bit and data overlay (other than error recovery data overlay) in FCP-4 along with your reasoning.