I am trying to burn a copy of my 2007.1 disc using ImgBurn and am not finding the iso file on the disc. The following instructions were posted in another thread:

"Open ImgBurn
Menú Mode - ISO - Write
In "Source - select a file..." - click on the icon with the yellow folder
Select "Image_file_name.ISO" - Open
In "Destination" it will show the model of DVD recorder, if you have various select where you want to record.
In "Settings - Write Speed", select "1x" (I go no higher than 4x speed)
Put a blank DVD into DVD recorder and "ImgBurn" will activate the gray button bottom-left to record it

ImgBurn : http://www.imgburn.com/

Hope this helps."

Any suggestions would be appreciated. Thanks!