EMI dropped copy protection in 2006 (in Canada, we dropped it earlier except when it was forced on us by other international arms of EMI). Other companies, I have no knowledge about although I suspect they have all dropped it. Most Record companies no longer manufacture their own discs anymore. EMI shut down the last plant in 2007 and farmed production out to Cinram. Sony BMG spun off production into a new division Sony DADC, and Universal sold at least one of their plants to Disctronics.
That's not to say the discs are all red book standards though. Discs with extras (ie videos) are multisesson discs which adhere to the blue book standards. There are a number of standards, in fact a whole
Rainbow.