The 'Special Collection' was pre-THX, and I think only individual discs; the 'Collector's Edition' was THX-enhanced, released as a box set, and is effectively the Japanese 'Faces' release (with the John Alvin lightsaber-and-some-kind-of-planet covers).
The 'Special Collection' was pre-THX, and I think only individual discs; the 'Collector's Edition' was THX-enhanced, released as a box set, and is effectively the Japanese 'Faces' release (with the John Alvin lightsaber-and-some-kind-of-planet covers).