[Gllug] When a CD is not a CD

[John Southern]

While looking in Borders, I came across a set of CDs that had a Copy 
Controlled logo. Being curious, I bought one of each.
Playing on an old CD player seems OK.

cdparanoia -Z n

will capture the data of track n to a .wav file.
However, this file then has the corruption signal audible.
It is a crack of noise that seems to be in different places at different times 
depending on the track. Sounds like a needle on a record player is jumping 
for dust.

Has anyone else come across this?
Why can I not hear this on the old CD player?
Apart from connecting a lead from the CD player headphones to a Line In and 
watching the sound level is not too high, is there an easier way to listen to 
this under Linux?

The albums in question:-

The Original Electro Album 18 tracks
The Original Easy Album
The Original 80s Album

There is another "The Original Electro Album" without the copy control but 
that has 21 tracks.

All are by EMI.

John
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