During some research on FDT tips, I found out from here that FDT saves local histories of your files. And using these, you can compare versions. To get to this, Right Click on the file > Compare With > Local History.
I haven’t tried it yet, but you can apparently also restore deleted files here as well.
Brendyn has been playing with computers since the Osborne I and Apple II+. Of course, back then he was a supreme geek, and is just plain old lucky that the computer nerd of the 80's became the new super-awesome-cool-guy of the 00's, which all Flash Guys at least claim to be. He has lived and worked in both Canada and Japan. Currently living in Toronto, he works as a Flash Developer primarily in the Advertising industry, and has developed Flash projects for such clients as McDonalds, All-State Insurance, Wyeth Pharmaceuticals, General Motors, Bank of Montreal, General Mills and Anheuser-Busch to name a few.