Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932351AbWB0WbR (ORCPT ); Mon, 27 Feb 2006 17:31:17 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751778AbWB0WbH (ORCPT ); Mon, 27 Feb 2006 17:31:07 -0500 Received: from nproxy.gmail.com ([64.233.182.207]:15758 "EHLO nproxy.gmail.com") by vger.kernel.org with ESMTP id S1751750AbWB0Way convert rfc822-to-8bit (ORCPT ); Mon, 27 Feb 2006 17:30:54 -0500 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=kPayodhhfjxYtv3pBI/FYL36La8ZRbAN+bvWHVdQYEQPYAd0eIi62NbnNh3kKLR91OKSpU5i9fWYNwQrd9JOxM7kkpcebc4PbJyKVDitmAyL80u1OzJNIJV6DiCznSHBfxPfL7Jl6l+YHx0Fbv1OY/tl/TvWgF9OOpE9lFSV3yw= Message-ID: <7e90c9180602271430m35051882jcc3e5b1608fb6be9@mail.gmail.com> Date: Mon, 27 Feb 2006 14:30:53 -0800 From: "Peter Gordon" To: "D. Hazelton" Subject: Re: CD writing in future Linux (stirring up a hornets' nest) Cc: linux-kernel@vger.kernel.org In-Reply-To: <200602271647.48600.dhazelton@enter.net> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Content-Disposition: inline References: <20060227212141.GA1334769@hiwaay.net> <200602271647.48600.dhazelton@enter.net> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 812 Lines: 19 On 2/27/06, D. Hazelton wrote: > This value is also reported by the drive. I don't know about DVD drives, but > for CD drives it is a multiplier. 1x == 256K/sec transfer off the disc [...] For CDs, 1x is actually 150 KByte/sec. > I haven't had time to look into the DVD specification, but I'm guessing that > the DVD speed is about 3x what the CDROM speed is. According to WikiPedia, the DVD speed rating is almost 9 times that of CD speeds. I.e., 1x DVD is about 1.32 MByte/sec. Just to make sure that we're all on the same page. :) ~~Peter - 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/