hello people, i have a problem...

i have an X5 2004-2005 with MK4 Navi in my trunk, with soft vers. SW4-1/30, and i try to update the soft to the last vers. 32, i burned some Verbatim CD with ImgBurn Mode1, speed 2x, but no luck, then i burned a Verbatim DVD with Nero, open my car, i put the keys in first step, set from menu on Navi, the inserted the DVD in my MK4, after some seconds, it's say Loading... then BLANK SCREEN, and nothing.... the MK4 light go off, and i can't get the DVD out, after several pushes on eject buton the DVD commes out, i restart the car and now BANG... i have an old looking Menu,
with no Navigation active...

After i read here i think i have to turn the engine on when i try to upgrade...with and older version.

Please help me i can't sleep if i screw my car and i have to buy another Navi...