If the IT guys would refer to me as colleague, client, customer, whatever I would be quite happy.
But no.... the IT guys always refer to me as a 'user'. I am your f***cking colleague, trying to help the company as a whole forward.
As long as IT think of themselves as a separate company-within-the-company despite their ever poor performance, they have my contempt. H.

Ok, how about this: I was personally present at the IEEE ceremony from the link and Joop Sinjou was telling stories about the early days of the CD development, which he was the project leader of. One of his anecdotes was how the engineers couldn't decide on a size for the hole and how he personally had picked the dime from his pocket and how that had settled the case. So I heard it from the man's own mouth, during an official IEEE event. It doesn't get much more reliable than that....

It's not a myth. Read the bottom of this: http://www.dutchaudioclassics.nl/Philips_honored_with_IEEE_Milestone_Award_for_the_development_of_CD/

FYI, the inner diameter was chosen by Philips to match the Dutch 10 cent coin at the time.

It's not the temperature that. The melting temp of any material can be looked up. It's how long you can *sustain* that temperature in your saver. The evaporation energy of the metal is drawn out of the saber and needs to be resupplied in enormous rates to be able to 'cut' fast. I do this for my work, metal sheet processing with lasers. We are very happy to be able to cut a centimeter thick metal sheet at several millimeters per second. We need a 1 kW laser for that, and the cut is only a hair thick. The laser light density is > 1 Giga Watt per square millimieter. If you want to cut wider and/or faster, no need more power. So with the light saver you'd need a small 1MW nuclear reactor strapped on your back for day-to-day use!