In real world context....

This is a major concern of 'unofficial' music sharing networks.
Lossy sources and conversions are severely frowned upon for diluting
the audio quality of highly regarded collectable live performances.

ie, taper of carefully recorded gig converts audio to wav & burns CD for free distribution to music lovers network.

At some point further in the chain an individual rips the CD to lossy MP3 for convenience.
later on that individual reconverts the mp3s to wav and burns a much diminished audio quality audio CD to pass on and share..

..and so it goes on, each lossy conversion / reconversion further down the line continuing to diminish audio quality.


Smug self-opinionated misguided Blog 'lectures' from the likes of Tom Sweeney don't exactly help...


https://pourdownlikesilver.wordpress.com/2010/09/05/tapers-a-rant/#respond

"Tapers: A Rant

I do not understand tapers that get upset about people using mp3......"