From owner-freebsd-hackers@FreeBSD.ORG Mon Apr 25 16:03:47 2005 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9224616A4CE; Mon, 25 Apr 2005 16:03:47 +0000 (GMT) Received: from ox.eicat.ca (ox.eicat.ca [66.96.30.35]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1136643D81; Mon, 25 Apr 2005 16:03:47 +0000 (GMT) (envelope-from dgilbert@daveg.ca) Received: by ox.eicat.ca (Postfix, from userid 66) id 5911EF9B4; Mon, 25 Apr 2005 12:03:45 -0400 (EDT) Received: by canoe.dclg.ca (Postfix, from userid 101) id 7694D1A08C3; Mon, 25 Apr 2005 12:03:42 -0400 (EDT) From: David Gilbert MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <17005.5342.260402.241779@canoe.dclg.ca> Date: Mon, 25 Apr 2005 12:03:42 -0400 To: Tim Kientzle In-Reply-To: <426BDE1F.3020004@kientzle.com> References: <426AC21B.2080205@chuckr.org> <426AE866.7050008@chuckr.org> <86wtqs9yiw.fsf@xps.des.no> <426BD1F6.7050201@freebsd.org> <86r7h08464.fsf@xps.des.no> <426BDE1F.3020004@kientzle.com> X-Mailer: VM 7.17 under 21.4 (patch 17) "Jumbo Shrimp" XEmacs Lucid cc: =?ISO-8859-1?Q?Dag-Erling_Sm=F8rgrav?= cc: Tim Kientzle cc: freebsd-hackers@freebsd.org cc: Chuck Robey Subject: Re: region code in cdrecord X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 25 Apr 2005 16:03:47 -0000 >>>>> "Tim" == Tim Kientzle writes: Tim> I wouldn't "rather", but I think it might be simpler. I also Tim> seem to recall hearing about discs whose region-coding was done Tim> in such a way that they would not play on unlocked players. Well (to put that to rest), there are two types of region coding in use on DVDs. The first is the one we're talking about here ... which is a code in the files that tells the DVD player which region the disk is. Early "unlocked" players were simply patched to accept any region. The second type is code in the menu system that queries the region code and then acts on it. Early players returned '0' for this function ... and the disks were coded to not play. The fix for this was players that you could change the region on ... and "unlocked" players of this type allow you to set the region an unlimited number of times. "locked" players usually let you set the region some small number of times. Dave. -- ============================================================================ |David Gilbert, Independent Contractor. | Two things can only be | |Mail: dave@daveg.ca | equal if and only if they | |http://daveg.ca | are precisely opposite. | =========================================================GLO================