Oh dear, I believe top man bigs me up a tad too far
This does raise a serious question though as to how much time and effort to put in to image rescue. If time is really no issue then some of the repairs i have seen make it worth it, but the complexity to get a good image can be mind boggling. I run a FaceBook group where some of the folks are truly expert at PhotoShop and the tools that can be used. I can usually get a half decent image from my scans but will admit if they start to take too much effort I will compromise and settle for anything that is better than the original.
If anyone on here uses FB then the group is
https://www.facebook.com/groups/1102434186467646/ . You are welcome to join, it is very quiet, only springing in to life when we get Darren's cast offs
Ian