Well my first post on this forum and it's not even to do with Star Wars - hahaha!!!
There's no such thing as wow and flutter with CD!! Records and tapes yes - CD definately no! The information is all read into a buffer anyway before it is converted to analogue and then to the amp/speakers. There is something called 'jitter' which affects CD's, though it doesn't seem to be a very well understood or correctable problem.
This whole green pen business is also rubbish! It's interesting that audio engineers are agreed it makes no difference whatsoever, and those who only rely on the ears think it does! There was a forum where someone had actually run some error correction tests on CD's (wish I could find it again) with and without the green pen treatment - there was zero difference. If your cd player or laserdisc player needs a green ring drawn around the disc to play it properly, then the player is a bad design! I've got a very good quality Hi-Fi system, and I've tried this green pen treatment many times - blindfolded I cannot tell the difference! The human brain is a cunning piece of work, and can fool you into thinking you've heard a difference because you've been told, or read somewhere that you 'should' hear a difference.
The one treatment that does make a measurable difference is the thorough cleaning of your CD's or LD's. A good quality plastics cleaner should be used with a VERY soft lint free cloth. Make sure the laser in your CD player or LD player is perfectly clean as well, and the player sits on a stable platform away from any vibration.
Just my 2$ worth (or in my case my £2 worth!!!)
Happy listening/viewing!
- John