E65 BMW NAV V32 02 Update BMW official dealer.

I Have DVD SL 2010 Road MAP recorded on DVD-R Verbatim, and is running at 100%.
I already did download several versions of 2011 but still could not make it work. Never checked that were recorded in mode 2. I used imgburn without changing settings.
The last version I downloaded was this DVD ENG DVD5 Road Map 2011, recorded on DVD-R Verbatim.
When I insert the DVD in GPS "light illuminates in the CD" but then the system displays the navigation screen "Initializing ..." and nothing else happens until the past few minutes the screen gives a flash and restart in order to appear again "Initializing". What is it?
It consulted the secret menu and my version is 8.4.4 I assume that the last of the V32.
Navigation:
sotware version: 8.4.4 hex
Date of manufacture: 2003 11 18
Item number: 69 61 859
Some help? DVD badly written? Brand of DVDs?