Path: utzoo!mnetor!uunet!husc6!bbn!rochester!udel!gatech!hao!ames!ucbcad!ucbvax!hplabs!hpda!hpsal2!hull
From: hull@hpsal2.HP.COM (James Hull)
Newsgroups: comp.ivideodisc
Subject: Re: CD (roms) question
Message-ID: <10820001@hpsal2.HP.COM>
Date: 7 Jan 88 18:33:02 GMT
References: <7813@eddie.MIT.EDU>
Organization: HP System Architecture Lab, Cupertino
Lines: 13

> What exactly is the capacity of a standard size CD, both in bytes and
> in playing time for music (assuming a standard speed)?
>				Nathan Glasser

A CD can hold approximately 75 minutes of music (on one side).

HP has a CD-ROM product which claims to hold "over 550 megabytes" on a
"three-mile long spiral track with a density of 16,000 tracks per inch".
The pictures in the brochure definitely show labeling on one side of the disc,
so I assume that only one side is being used for data.

 -- Jim Hull
    hplabs!hpda!hull