What exactly is bitlock, booktype, riplock e.t.c.?


I keep seeing many references to bitlock, booktype and riplock for modified firmware for the NEC 3520 drive.

Please can someone either explain this or point me in the right direction where this is described in detail.

Many Thanks

Check out The Big NEC F.A.Q


However I can’t find a good definition of “booktype” here, can you elaborate further please?