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"Indeed the bits are the bits and have the robustness inherent to digital."

Obviously, you can't change the physical data on the CD. However, the physical data can and is misinterpreted by the transport during the laser reading stage. All or almost all transports are prone to the following issues,

1. External vibration, I.e., footfall, seismic type vibration, micro seismic activity, etc.
2. Internal vibration, e.g., transformer noise, transport mechanical noise.
3. The fluttering and wobbling of the spinning CD, the laser servo feedback system can't keep up, it's a pile of junk.
4. The interference of scattered CD laser light inside the transport compartment. Laser light is scattered when it strikes the nano scale data spiral, diffraction grating. Ever see the "CD rainbow?" The photodetector is not too swift and can't tell the difference between "real signal" and "fake signal"from the scattered light that is sufficiently powerful.

So the transport isn't very robust, is it?

We don't even have to broach the dodgy subject of cable and fuse direction or other issues audiophiles suffer.

Yes, I know what you're thinking, Reed Solomon codes correct any errors.


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