Olin Lathrop wrote: === However, I was looking for more of a computer graphics history answer that would be relevant to others. What are these images? When were they made, and why? Why are they special in a computer graphics historical context? === Hi Olin, Just throwing out a guess to one of your questions: Are these an early example of 'ray tracing' techniques? Best regards, Ken Pergola -- View this message in context: http://www.nabble.com/-OT-Is-your-oldest-CD-R-still-readable--t907869.html#a2380491 Sent from the MicroControllers - PIC forum at Nabble.com. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist