Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!watmath!clyde!floyd!harpo!seismo!hao!hplabs!hp-pcd!hpcnoa!rmd From: rmd@hpcnoa.UUCP Newsgroups: net.audio Subject: CD defect Message-ID: <30200020@hpcnoa.UUCP> Date: Mon, 30-Jan-84 22:32:00 EST Article-I.D.: hpcnoa.30200020 Posted: Mon Jan 30 22:32:00 1984 Date-Received: Wed, 8-Feb-84 03:10:13 EST Organization: Hewlett-Packard - Fort Collins, CO Lines: 28 Nf-ID: #N:hpcnoa:30200020:000:1212 Nf-From: hpcnoa!rmd Jan 30 19:32:00 1984 Here's some ammunition for CD foes: I bought a CD recently with an audible defect which cannot be removed by cleaning. The defect is clearly in the CD itself and not in the master because it does not always appear at the same place in the music. The defect is a band of very small bubble or dust particles in the CD near the outer portions of the music. The band is about 1/8th of an inch wide and is straight, intersecting the disc tangentially. It is 2 or 3 inches in length. The audible result sometimes sounds like a brief tape dropout and sometimes sounds like a low-level 'pop' on a LP. The CD player is a CDP 101, which of course has only mediocre error correction characteristics. A better CD player might very well be able to play this CD with no audible problems. My conclusion is that error correction ability is more important than I had previously thought. We can only expect the quality of CD manufacturing to go down as the volume increases. Even on this disc, the defect is not as bad as the pops and scratches on LPs, but it is enough to be irritating. Anyone have any constructive comments or similar experiences? Rick Dow inhp4!hpfcla!rmd