From: utzoo!decvax!harpo!npoiv!hou5f!ariel!vax135!cornell!hal Newsgroups: net.misc Title: Re: A question about records speeds Article-I.D.: cornell.3988 Posted: Sat Feb 12 17:34:49 1983 Received: Tue Feb 15 01:40:20 1983 References: burdvax.559 Another obscure fact about 15" transcription disks. Because they were only intended for professional use, they often didn't have the "bead" on the outside edge that commercial records have. (The bead is the rounded off edge.) Without the bead, these disks had razor sharp edges. I once threw one of these things like a frisbie at a tree (with no one around, of course), and it imbedded itself about 1" into the tree. Makes Odjob's hat seem like a safe children's toy. Hal Perkins {etc...}!cornell!hal hal@cornell (arpa)