Abstract: Method and apparatus for a portable clean environment used for recording optical disc masters by enclosing a light sensitive optical disc in a container that prevents ambient contamination from destroying the pristine environment necessary to create optical disc masters. A transparent optical disc, having an optically active lamina on at least one surface of the transparent optical disc, is enclosed in a dish shaped container that is generally free of particulate larger than 0.2 microns, the enclosure assembly effectively preserving a class 10 cleanroom environment. The dish shaped enclosure isolates the surface of the optical disc used to record data from contamination due to ambient conditions while exposing the nonwriting surface of the optical disc to enable laser writing. A foil seal protects the exposed nonwriting surface of the optical disc from ambient contamination during storage and until recording is desired.