Date: Tue, 20 Mar 2001 21:52:47 -0800 From: "Ted Mittelstaedt" <tedm@toybox.placo.com> To: "Andrew C. Hornback" <hornback@wireco.net>, "Jussi Reissell" <reissell@cc.helsinki.fi> Cc: "FreeBSD Questions" <questions@FreeBSD.ORG> Subject: RE: CD burning question Message-ID: <003301c0b1cb$2851c9a0$1401a8c0@tedm.placo.com> In-Reply-To: <000601c0b144$4e5ec4e0$0e00000a@tomcat>
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>-----Original Message----- >From: owner-freebsd-questions@FreeBSD.ORG >[mailto:owner-freebsd-questions@FreeBSD.ORG]On Behalf Of Andrew C. >Hornback >simply won't touch a CD-RW, even if it's been burnt correctly. Same goes >with a lot of early CD-R and CD-RW drives, as they used semi-proprietary >formats to produce disks which were unreadable in anything but the drive >they were created, or one of the same model. > Gaaakkkk!!!!!! The problem with the older drives not reading burned CD's has nothing to do with semi-proprietary formats. (this is NOT CD-RW's which are a different animal) It's due to 2 simple reasons: 1) Many older drives cannot read multisession CD's, or Cd's that are left open. If you use burn your CD so that it's a single-session and is closed when it's burned, it will be readable by most things. ISO images are by definition single session (at least they should be unless your burner software is _really_ brain-dead. 2) Some older drives have lasers that cannot read some of the burned CD's because their lasers are the wrong color, thus the burned CD is invisible. I understand a lot of this is confusing. What is worse is that multisession CD burners by definition have to be able to read unclosed CD's. So, a lot of newbies that don't know any better make a whole library of unclosed CD's that they add a little bitty bit at a time, and they use their burner as their main CD drive, then they wonder why the CD isn't readable elsewhere. > Basically, unless you're using a fairly modern CD-Rom which >supports CD-R >and CD-RW, I wouldn't try any non-professionally mastered CDs in those >drives. > I've burned plenty of CDs and I have many _ancient_ single-speed and double-speed CD drives. Single-session CD-R's are not a problem if you know what your doing when you master them. And I've only run across 1 model of single-speed CD drive (Sony) that couldn't read the dye's on a burned CD. It is interesting that Sony is one of the main companies _against_ people being able to copy videodiscs and DVD's and such. In fact I believe they used the laser trick on at least one model of Playstation, that model can't read burned CDs. Your advice holds true for CD-RW's but it's wrong for regular CD-R's. Ted Mittelstaedt tedm@toybox.placo.com Author of: The FreeBSD Corporate Networker's Guide Book website: http://www.freebsd-corp-net-guide.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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