Why does an audio CD hold 74 minutes’-worth of music?

Must be some technical reason for it, surely? Not at all says the NYT:

“In the early 1980’s, Sony was helping to develop a new digital music technology. Mr. Ohga, then the company’s president, insisted that no matter what else, the new format had to be able to play Beethoven’s Ninth Symphony without interruption. Mr. Ohga, you see, had been a classical vocalist before getting into electronics.”

A lovely trick — from Tim O’Reilly

From a Wired report. Quote:

O’Reilly said the old idea of stand-alone software — the unconnected word processor or spreadsheet — is becoming passé. Even the idea of making a distinction between software platforms — Mac, Windows and Linux — is starting to no longer make sense.

“The platform is no longer the box sitting at your desk,” O’Reilly said.

To illustrate his point, O’Reilly asked how many people in the audience of Mac OS X programmers were Linux users. Several raised their hands. But when O’Reilly asked how many used Google, there was a unanimous show of hands.

“Ah,” O’Reilly said, “you’re all Linux users.” Google is a Linux application running on the world’s largest Linux cluster, he explained.

What a wonderful rhetorical trick. Must use it sometime soon in a lecture.