Hi Barge,

While I am struggling to even comprehend a recording deck.
I'd like to add something I have always used in IT.
After nearly thirty years of working on real data where if you make an error you are in deep deep poosies.
I did ten years playing with welfare databases yes your everloving Dole payments, if there is one thing I learned it was always make a copy of your masterfile first.
If you do stuff up you can always recover back to your original.

PK