Thanks guys.

I just had a look at the fan edit "Superman IV: The Quest For Coherence" and in that is some laserdisc footage of the missing scenes involving the tornado and the kremlin. The way that it has been used has been quite masterfully done, as only select shots have been used from the laserdisc (shots with incomplete optical effects) while the rest of the scene plays out with footage taken from the DVD deleted scene footage. With this in mind, it might be possible to use the few laserdisc sourced shots with the blu-ray, as I believe the deleted scenes for Superman IV have been included on the blu-ray. If the deleted scenes were indeed in high defintion from the blu-ray disc (with only select shots in laserdisc) this could work out very well indeed.

One problem I am seeing with this after seeing the Quest For Coherence laserdisc footage, is that I seriously doubt that I could provide better quality footage than that has already been done, which changes things somewhat.

Here is a summary below of few new potential ways to do this:

For a High-defintion/SD preservation: Use the laserdisc footage from the Quest For Coherence fan edit and use both the Blu-ray with the Blu-ray deleted scenes with an extensive colour-correction process.

For a Standard Defintion preservation: Use the laserdisc footage from the Quest For Coherence, use the DVD or the Blu-ray, along with the deleted scenes, with partial colour-correction process (as the DVD matches the laserdisc footage more than the Blu-ray).

Regarding VHS, I think it would be incredibly difficult to do. I'd also need to see whether the footage is decent enough over what is already available from Quest For Coherence to justify the use of it.

I will try to obtain a copy of Superman IV on VHS to see whether the quality is decent or not.