How sounds are made: Video of how a diamond needle on vinyl and other media forms transmit music"

Engineers will love this, seeing how a needle flowing along a narrow gap in a record, could make stereo music - actual photos taken by a micron microscope.

And then this engineer went further, and looked at DVD's and other forms of music and video production. This is a nine minute video - well worth the time for curious minds.

For the video, click here.