Path: utzoo!mnetor!uunet!husc6!ukma!david From: david@ms.uky.edu (David Herron -- Resident E-mail Hack) Newsgroups: comp.ivideodisc Subject: Re: CD-ROM Message-ID: <7990@e.ms.uky.edu> Date: 6 Jan 88 20:21:48 GMT References: <19898@teknowledge-vaxc.ARPA> <4469@watdragon.waterloo.edu> <2132@bloom-beacon.MIT.EDU> <4481@watdragon.waterloo.edu> Reply-To: david@ms.uky.edu (David Herron -- Resident E-mail Hack) Organization: U of Kentucky, Mathematical Sciences Lines: 30 Music CD's do indeed use the same formats as Data CD's. Music CD's are single sided whereas Data CD's can be double sided. Music CD's are single sided to allow for labelling on one side. I would have liked for them to be double sided. There is ample room for some labelling in the dead area's of the disk -- that is, I assume I'm interpreting what I see properly. On a Music CD there's a band of "smooth-continuous" looking "silver" around the outside, inside that there's a band of not so "smooth-continuous" looking "silver", inside that there's another band of "smoth" stuff. I assume that the data is in the not-so-smooth parts and the smooth parts don't hold any data and can be used for labelling. 2 1/2 hrs of music on a disk would be nice. But then that assumes that the record companies can think of ways to distribute that much music in one package. From past experience I don't think they could. They haven't been able to get beyond thinking in terms of the "Album" format. I was looking through BYTE last night and saw someone advertising CD ROM readers and WORM drives. The ROM readers had attachments available which would allow one to play Music CD's in the ROM reader. I had a thought. Do WORM drives use the same data formats? If not, can they? I had this silly thought about making backup copies of my Music CD's :-). -- <---- David Herron -- The E-Mail guy <---- or: {rutgers,uunet,cbosgd}!ukma!david, david@UKMA.BITNET <---- <---- Winter health warning: Remember, don't eat the yellow snow!