Need help with 8.5 dvd-R DL burning

I'm sorry for the double threads My original thread didnt show up until i re-entered it....

Well i have some movies on my hd that are to big for 4.7 gb dvd's, so i got some of those 8.5 dvd's.

I was starting up TMPGEnc 2.0 trial version, and i had everything good and set. Well i proceded to start the dvd structure biulding(.VOB, .IFO) well i went to insert the 8.5 dvd into my dvd burner. I put it in and waited for it to register.

The light under the dvd burner that shows it is reading; it was on for atleast 1 minute to 1 1/2 minutes. Well on screen it said it was "launching media..." and it said please insert media????

I don't know ahy it isnt reading it, and would like to know if anyone knows what the problem is. Thanks in advanced.