Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Tue, 9 Apr 2002 05:38:27 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Tue, 9 Apr 2002 05:38:26 -0400 Received: from 167.imtp.Ilyichevsk.Odessa.UA ([195.66.192.167]:8466 "EHLO Port.imtp.ilyichevsk.odessa.ua") by vger.kernel.org with ESMTP id ; Tue, 9 Apr 2002 05:38:25 -0400 Message-Id: <200204090934.g399YbX02006@Port.imtp.ilyichevsk.odessa.ua> Content-Type: text/plain; charset=US-ASCII From: Denis Vlasenko Reply-To: vda@port.imtp.ilyichevsk.odessa.ua To: Anssi Saari , Mark Mielke Subject: Re: PROMBLEM: CD burning at 16x uses excessive CPU, although DMA is enabled Date: Tue, 9 Apr 2002 12:37:50 -0200 X-Mailer: KMail [version 1.3.2] Cc: linux-kernel@vger.kernel.org In-Reply-To: <20020408122603.GA7877@sci.fi> <20020408174529.A546@mark.mielke.cc> <20020409083243.GB23043@sci.fi> MIME-Version: 1.0 Content-Transfer-Encoding: 7BIT Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On 9 April 2002 06:32, Anssi Saari wrote: > On Mon, Apr 08, 2002 at 05:45:29PM -0400, Mark Mielke wrote: > > The question is, how is CD burning of raw data different from > > CD burning of ISO images, in respect to Linux drivers for the > > hardware > > As far as I know, when burning an ISO image, the image has 2048 byte > sectors to which the CD writer adds error correction data so that the > individual sector becomes 2352 bytes. A raw data image includes 2352 byte > sectors. The obvious difference would be a higher data rate (2352/2048 > or 1.15x more) from computer to writer. It means different write command, additional (possibly less carefully written/tested) driver code etc. You may need to track your problem up to that driver code. -- vda - 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/