Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751578AbWB0Su3 (ORCPT ); Mon, 27 Feb 2006 13:50:29 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751597AbWB0Su2 (ORCPT ); Mon, 27 Feb 2006 13:50:28 -0500 Received: from linux01.gwdg.de ([134.76.13.21]:659 "EHLO linux01.gwdg.de") by vger.kernel.org with ESMTP id S1751578AbWB0Su2 (ORCPT ); Mon, 27 Feb 2006 13:50:28 -0500 Date: Mon, 27 Feb 2006 19:50:15 +0100 (MET) From: Jan Engelhardt To: Sam Vilain cc: Luke-Jr , Jesper Juhl , Bernhard Rosenkraenzer , linux-kernel@vger.kernel.org Subject: Re: [slightly OT] dvdrecord 0.3.1 -- and yes, dev=/dev/cdrom works ;) In-Reply-To: <440240F8.3010207@vilain.net> Message-ID: References: <200602250042.51677.bero@arklinux.org> <200602261330.15709.luke@dashjr.org> <9a8748490602260529h3a2890bhce4112feefb7cb1f@mail.gmail.com> <200602261339.13821.luke@dashjr.org> <440240F8.3010207@vilain.net> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1562 Lines: 39 >> > > And what about DVD-RAM drives? Any plans to support those? >> > My [limited] understanding of DVD-RAM drives was that they are >> > basically removable block devices... you wouldn't need a recording >> > program for that, you'd use it like a floppy. >> Same goes for DVD+RW. One may want to use it in conjunction with pktcdvd >> for aligning and command queueing/iosched reasons. > > Can I mount a friendly challenge to that idea? > I win, reiserfs on a dvd+rw: http://jengelh.hopto.org/GFX/dvdrw_r3mnt.jpg > I had presumed that these are to give the drive > something big to key its read/write operations on. Nice, except I don't think > the media is compatible with a regular DVD drive. > Yes. A 650 MB *CD*-RW (DVD-RW too?) formatted in packet mode only has like 500-something megabytes to allow for the sort of seeks required. On DVD+RW, you get the full 4.3 GB (4.7 gB) AFAICS. > DVD+RW, on the other hand, I just thought was a different surface technology > (more expensive, higher quality) than DVD-RW. There is nothing to help with > the lead-in/lead-out problem that is why you have several megabytes of lead-in > and lead-out per session on a multi-session disc. > > But maybe I'm wrong here... if I could use a DVD+RW like a DVD-RAM I'd be very > happy indeed. > > Sam. > > Jan Engelhardt -- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/