check this out:
http://www.instructables.com/id/3D-Printed-Record/
the sound quality is quite bad, but it turns out the author neglected to
apply the RIAA curve to the master before rendering the groove, so it
could be made to sound much better. but that's not really the point :)
reminds me of a band i heard of in the 80s (forgot the name) who
released a single which, if recorded to some data cassette format, would
yield a computer game...
best,
jörn
Who wants vinyl records when you can press records on the coolest
material ever?