I have burnt approx 50 x 2007-1 disks with no failures. I use UltraISO to burn the original DVD to my hard disk, then use Alcohol 120% (version 1.9.5) to burn that ISO image to a DVD. I only use DVD+R - Maxell or Sony.
If anybody in the UK or W.Europe is interested, I have 5 copies of the BMW DVD 2007-1 "High" Europe available for £30.00 (post included), and any quantity of 2007-1 "High" Europe DVD's with the current UK Speed Camera Database (Visual only - no audible warnings) included for £40.00.
The latest BMW V28 OS CD (with full installation instructions) can be added for a mere £5.00.
As you will all know, or can find out with one telephone call to your local BMW dealer, the 2007-1 DVD will cost you around £250... The V28 OS upgrade will be about £86 + VAT.
Just PM me before your environmentally friendly (read terrified of being prosecuted by Blair's Nanny State) forum moderators remove this post......