As far as this disc goes, I don't really see the need to max out visual quality on the Superbit (which, although some were obvious step-ups from previous releases, were always the Emperor's New Clothes in my eyes as the be-all-and-end-all in AV quality etc.) and since I won't be putting the original soundtrack/dialogue of the film on this disc it will be unnecessary going DTS etc.
There's no real need for this to be Dual Layer since it's the audio tracks that are the stars. With the commentary synched (took a fair while with various areas - end of laserdisc sides ? - that knocked the subsequent remainder out by a few seconds each time) it's still only 3.8gb using the purest visual and the filtered mp3's - so with the soundtrack too (even it were PCM) - I can quite happily bring this in at a single layer with little to no compromise. For those that need the HD or Superbit experience, then by all means procure them and watch them for the film's sake
That's not to say that anyone else is welcome to try with the two audio tracks on this disc when it's released, but waiting on better sources etc. are usually the reasons why projects such as this get delayed/forgotten. No big deal like I say - but with the isolated score, this one's all ready to go !
Cheers,
mm