As stated before, all my address book and recent destinations remained unchanged.

Using 2 single layer DVD is a good idea. When I backed up the 2009.1 DVD there was really only one compatible disk (Verbatim 8x DVD+R DL) and I had to use DVD Decrypter to rip it and burn it. The data has to be distributed correctly between the layers or it will not work.

I burned the 2010 onto Sony DVD+R 8x (Made in Japan) which are actually Taiyo-Yuden. I understand these are the best and I use them for any critical DVD need.