Return to BSD News archive
Newsgroups: comp.os.386bsd.misc Path: sserve!newshost.anu.edu.au!munnari.oz.au!sgiblab!swrinde!cs.utexas.edu!utnut!torn!mcshub!todd From: todd@flex.eng.mcmaster.ca (Todd Pfaff) Subject: Re: Experience with double-speed CD drives? (esp Toshiba 3401b) Message-ID: <1994Jan3.025119.19146@mcshub.dcss.mcmaster.ca> Sender: usenet@mcshub.dcss.mcmaster.ca Nntp-Posting-Host: flex1.eng.mcmaster.ca Organization: McMaster University References: <1993Dec31.202224.813@cs.wisc.edu> Date: Mon, 3 Jan 1994 02:51:19 GMT Lines: 25 In article <1993Dec31.202224.813@cs.wisc.edu> jcargill@oka.cs.wisc.edu (Jon Cargille) writes: > >Does anyone have any experience with double-speed CD-ROM drives? If >so, what sort of bandwidth are you seeing from the drive? > >The reason I ask is that I recently purchased a Toshiba 3401b, which >is supposed to achieve 330Kb/s. However, when I use "dd" to read from >the raw device, I get only about 200Kb/s. > >Is anyone else getting better performance from a similar drive? If >so, what sort of speeds do you see when you execute: > > dd if=/dev/cd0d of=/dev/null > >Incidentally, the Toshiba is attached to an Adaptec 1542b card... I get <200Kb/s with a 3401b and an Adaptec 1542C. -- -- Todd Pfaff \ Internet: todd@flex.eng.mcmaster.ca Dept. of Mechanical Engineering \ Voice: (905) 525-9140 x22902 McMaster University \ FAX: (905) 572-7944 Hamilton, Ontario, CANADA L8S 4L7 \