PDO, USA

Philips DuPont Optical US CD manufacturing plant. Operating under this name from December 1986 until June 1992. Then it was acquired by PolyGram, and subsequently renamed to PMDC USA. Located in Grover, Kings Mountain, North Carolina. Inner hub: MADE IN USA BY PDO changed to just MADE IN USA in 1991; if the latter is used for a title from 1990 or prior - and a version with the former also exists - the latter is a repress.