The black backing does make a mess,it's a gooey oil-slick type covering.Most of it came off on its own,some spots had to be rubbed.I had to clean my reel and tank in hot water afterwards.Judging by the print,the negatives were fogged and some light leak can be seen in the form of sprocket holes,overall though,for film exposed 30 years ago,it's not bad.This would be especially worthwhile for someone with family type exposures,I think.You could get to see someone you knew once again.Fred,I think it's a messy procedure to achieve something that could be better done on "regular " film,Heterolysis-if it were my grandparents Super 8 I'd find a way to do it!The roll I used was k-14 process,others may differ.Thanks for the comments!