I acquired several professional Dolby SDDS dts and Lucasfilm Ltd THX Sound System crossover/monitors last year. STAR WARS Episode 1 this is the only theatrical release of its kind as the DVD was slightly extended due to more tinkering around with. Dolby Digital AC-3 is blast of listening fun in THX Sound System. STAR WARS "faces" edition same as the THX CAV box set expect some form of DNR was applied which made the image look a bit soft. Early edition Letterbox USA pressings of STAR WARS collection best versions I would play via the Dolby CP500 and THX Sound System.