A turntable using a laser

Yes, that's where it is about, a turntable using a laser instead of a needle.

Scannen

 

Put your vinyl on the scanner and have a program reading the tracks.

When Ofer Springer published this, many thought this an excellent hoax until he published the source code!

Ofer did it just for fun. A serious effort is the IRENE project.

Electron microscope

Chris Supranowitz decided to look at the grooves of a vinyl record using an electron microscope.