Mudcat Café message #1346509 The Mudcat Café TM
Thread #76143   Message #1346509
Posted By: MudGuard
03-Dec-04 - 12:44 PM
Thread Name: BS: Whats the Holes in CD's for then?
Subject: RE: BS: Whats the Holes in CD's for then?
Skipper, unlike old time records, data recorded on a CD starts at the center and end at the outer edge.

McGrath, it is one spiral.

And the main purpose of the hole is for the spinning motor - it is also used for centering the CD in the drive mechanism.