Unfortunately , You're writing DVD+R and not DVD-ROM
You could try to use the Nero CD/DVD Speedbook-type change utility ( it's free )
IF you burner is supported and if your firmware allows .
( You could also ask Dell Support about 'book-typing' )
We often recommend using a program called EndItAll , prior to our burns.
This is a free program that stops all the unnecessary, non essential junk
that runs in the background,
and protects essential programs that can not be terminated (like Explorer and SysTray).
In addition, you can select which programs to "Protect", so as not to terminate them.
You can protect "AnyDVD/DVD43", so when you "EndItAll", it won't terminate the decrypter.
Here is a link to " Enditall 2 "
but please note this is a powerful tool .
You would be better reading about it first ,
before you run it .
Read about it
At first , I'll admit, this program did intimidate me
So I read , then set a restore point.
First selected "close all" , noting no problems ,
I'll select "close all" again , a few more will close
Select 'refresh list' ,
and look at the remaining programs not closed by the "close all" function .
Now , one by one , I'll 'kill' the remaining programs ,
noting any conflicts with each closure , ( none for me )
so to decide if they should be protected .
I would never recommend initiating the "Kill All" sequence .
Be Careful - not afraid- it automatically protects Windows
You'll be surprised to see what's running , hidden in the background
This will totally eliminate the possibility of another program
interfering with the process .
( EnditAll is also very effective when running Registry Repair , De-frag
and the Installation / Removal of programs )
There is also a screen-saver and power management block 'feature'
on the EnditAll tool-bar .
Just having EnditAll open with these "block" features enabled
will prevent the activation of your screen-saver
and any power management shut-downs ,
so you don't have to keep changing your settings .
When finished , close EnditAll .
Simply Restart your computer , and all returns to normal
It's a great little program ,
I do use this before all of my burns .