These are the UDF ISO Image (http://en.wikipedia.org/wiki/Universal_Disk_Format) files for the Offline GDG Developer Kit.
You can download and use them to burn your own DVDs using 8.3GB double layer DVDs.
You can burn them for free using Linux (e.g. Ubuntu) using the following command:
growisofs -dvd-compat -Z /dev/scd0=GDG_DEV_KIT_DVD1.udf
/dev/scd0 is your burning device.
If in doubt which is your burning device, use:
These are the zip files for the Offline GDG Developer Kit.
You can download, unzip and use them on your computer or host them on an in-house server for use within your intranet.
If you want to burn your own DVDs please download the UDF images instead.
To unzip on Windows use a zip utility like 7zip (http://www.7-zip.org/).
For Linux or Mac you can use the standard zip utility in your terminal
If you are already using the developer kit and would like to help our pilot with some feedback, please use this form