Sorry about the delay in answering the responses to my question. After doing some additional homework I found that I was not burning the DVD as I thought. Not being familar with Linux Mint what I was doing was just setting aside the files to be burned. I finally found that I needed to use Brasero to actually burn the files to the DVD. I have finally burned files to the DVD which can be display in Win7.
My only problem now is learning how to use Brasero to add additional files to the DVD. I'm sure there's a way to do it, I'll just keep trying (or if anyone knows of a better program).
Thanks very much for your help, I really appreciate it.