CD & DVD under microscope

I knew that there are tracks, but never was able to see them. My old pocket microscope was too weak.

Update: Photos remade with new camera. Also figured out how to make a good photo of DVD - I needed to brutally crack disk at half of it's thickness to directly access surface with written data.

Track interval is 1.6µm for CD and 0.74µm for DVD.



Immersion lens:

November 5, 2013