TServo2049 said:
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The JSCs are the best source of a non-DNR'ed pre-SE -- well, the only, since the American widescreen discs were sourced from them.
There was another non-DVNR'd US disc for Star Wars that was not sourced from the JSC. It is discussed here. Was there an equivalent pressing for ESB and ROTJ?
However, with the talk of crosstalk defects on the SW disc you are probably correct to say that the JSC is the best source.