Thanks for the quick response. My c-drive indicates I have approx 130 GB.
When I attempt to burn a DVD it goes normally until the dvd is ejected (I anticipate successful completion) but I get the error message. This has been a problem for some time, months in fact. Oddly enough I was successful once, during this period, in burning one DVD.
I don't know if this means anything but I try to use the susposedly still blank disc again and I get another error message but it says use a properly formatted disc. In other words, the process rendered the blank disc useless.