Continued from thread: http://www.wilderssecurity.com/showthread.php?t=300401 (the thread is apparently closed due to age) I dont get the conflict in that thread. Here is the situation as I understand it (please correct me if I'm wrong). Suppose I have a 1TB drive on which to create the hidden volume. The outer "standard" volume creation first writes random data to the whole of the 1TB drive, as a way of securely wiping the drive. The data files (say 20GB) to the standard volume are then written normally. So, the outer volume when mounted shows 20GB used, 1TB drive. The hidden volume is written to the unused space on the 1Tb drive, but without the hidden volume password, this hidden data is indistinguishable from the first random wipe data that was written. If you select write protection and give the wrong password, it is indistinguishable from the situation where you do NOT have a hidden volume, and have just the standard volume. If the adversary has not had access to your HDD before, the only way the adversary can figure out that you have a hidden partition is if you tell him. +++Caveat: unless programs have written things into temp files in non-hidden partition during last use.