Home Media Magazine is reporting that WB is deliberately waiting to release the exact date that Half-Blood Prince is coming out.  Most of the rumors are saying early December or late November.

With the all-important fourth-quarter rapidly approaching, Warner Home Video has decided to release its tentpole titles later than usual, anticipating consumers will delay holiday purchases until the last minute, said a Time Warner senior executive.

“We are purposely putting our titles into the retail channel later in the fourth quarter to try and take advantage of what we believe will be the optimal foot traffic trends in retail,” Martin said.

Thanks TLC.