msycamore wrote: These two Dolby System logos also have a variation in the font used for "Making Films Sound Better", "Noise Reduction - High Fidelity",

That's knowing your logos. Would never have spotted that, it's like 1/10th of a space reduction between characters! But yeah the '81 revision idea got shut down when Mothr pointed out that both bootlegs were pre-ANH. There is the possibility of one being a merger of separate reels, but there's some evidence which doesn't refute the idea but sync's up with other known quantities.

I see in my last post I didn't really explain the connections fully. When paying attention to the audio changes in conjunction with this credit change, they sync up with each other. The Mono Mix has the 'refined' credits, 16mm and bootleg. While the Dolby Stereo has the 'draft' credits. So since the audio differences were identified as opening day things, then this credit probably follows along.

So the weird thing now is, you would think since the 'refined' current credit version that it would have taken it's audio counterpart along to 'current' status, but it hasn't. The Mono Mix has been excised. Was the Mono Mix created last or all three being worked on simultaneously?

Will most likely turn this thread into a general Credits and other ephemeral type of thread. As SilverWook said, it's kinda neeto seeing the credits all at once.

Puggo wrote: It might be possible to date the PG reels by studying the lead-ins/lead-outs provided in the provided extra.

This is something i'll probably turn into a pic. Looked at the first two reels quickly but didn't see any date specific information, so it's probably going to be comparing image elements to others from this time frame. As you pointed out the curious things is that two reels have similar lead in material while the third (middle reel) is something else entirely. Wondering if this also happened on the Krig. (haven't looked yet)