Blackburn, England (PDO)
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| PDO Blackburn | |
|---|---|
| Location | Blackburn, Lancashire, UK |
| Online | Unknown |
| Operators | PDO ??-?? |
| Shutdown | Unknown |
Bronzing
During the early 1990s, CDs manufactured at PDO Blackburn began using a new reflective coating that was made with silver rather than the usual aluminum. Over time, this coating tended to change tint from silver to a yellowish-bronze, and in many cases deteriorated further to a deep copper hue that made the affected disc difficult or impossible to play. The phenomenon became known as bronzing.