Mike Richter:
You can also see reports that green (or red) marker on the edge improves the sound, that silver (or gold) sounds better, and so on ad infinitum. There are WWW pages devoted to urban legends. Please check there before passing along the un measurable and inaudible claims.
It is audible in my experience, black vs silver CDR disk.
Even Plextor painted the disk tray black and could measure a lower jitter as reported by you yourselves some time ago from private communication on the advanced CDR list.
As the DACs used are not immune to upstream changes to the incoming amount of jitter then any changes here may be audible to the end listener.
Depending on the associated equipment the difference may go un noticed to clearly audible in my experience.
-- Best,
Goran Finnberg The Mastering Room AB Goteborg Sweden
E-mail: mastering@xxxxxxxxx
Learn from the mistakes of others, you can never live long enough to make them all yourself. - John Luther