http://www.wiizardmod.com/advanced.jpg --- it's enough clear what a golden dot unit is ... it includes D2E support from factor.
If you read the .txt inside the Disc Upgrade .RAR file it explains how the upgrade process is done replacing the D2C2 firmware for the newest D2E one,it means that you need to select the drive like D2C2 after finish the upgrade so it works with a new D2E .. of course it's not needed on the newest "golden dot" units and you only need to short C&D over them
D2E upgrade disc includes all the fw (D2A/DMS/D2B/D2C) excepting th D2C2 which is replaced to use the first batch with D2E support
Please,read any comment or txt file inside the upgrade files before make any process