Good Afternoon All:
When I retired over 7 years ago there was absolutely no requirement to pull the C.V.R. c/b at my airline after an incident. Although the tape is continuous loop for 30 minutes and overwrites after that at an A.R.T. session many years ago we were told that the laboratory can recover up to 2 hours but it takes a lot of effort to do so.
As an aside to some of the postings written I would suggest this, wait for the report to be published read then make your "informed comments".
.