Aww, Twink, that's too bad. I hope Bobbi's right and you can salvage it. The way they make things nowadays it's pretty hard to erase or lose something. If not, then you can spend more quality time with Dad!! I'm sure he'll enjoy it!
BTW, if you ever type up the transcripts I would love to read them....it's fascinating to hear (or read) about the way things used to be.
Your Dad has seen and experienced so many changes and inventions over the years. I'd love to sit and listen to him talk about them. That stuff just fascinates me!