This should be what is loaded on your 2010 HD.

Cost is $199 most places.

Sorry, perhaps I am confused between TeleAtlas vs NavTeq. I guess I had thought the TeleAtlas was that comes from USA and NavTeq from Europe but perhaps I had those reversed. I had read how the vendor was changed for the 2010 to the European company's USA maps and found the idea ridiculous. Reading this thread, I thought I might have found a way to switch back. Oh well, glad I started off with "newb ignorance question"! ;)

So this would be the update for my '09 X5, correct?

This was the update for my 2008. Went from one-disk (Navteq) to a two-disc (Teleatlas, I think).

Notice any improvements?

Looks just the same to me on the screen, but I had no issues with the old one. Until we go cross country to Nantucket later this spring, I really won't get a chance to test it out thoroughly. All in-town driving between now and then.

One change: the name of our street was misspelled on the old one. It is correct on the new one!

Saved locations all remained after switching. Generally, the maps looks the same. It's strange that it doesn't even show my town name though -- we only have 25,000 people in this town... :rolleyes:

I have to wonder why the need for two DVD's, it looks like all that data would fit easily on one double layer DVD.

I read somewhere that the DVD BMW uses had some errors reading dual layer DVDs, so they went back to using 2 instead of 1.

I have not encountered any differences.
 

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.