i have read of HDD failures on similar Audi's (and other manufacturers) elsewhere.
and that there's the nav info, voice info, and lots of other info stored on the HDD, as found on a similar unit on another website
Apparently Audi's answer is a new MMI unit, and as i've already been stung by Audi once, i was going to cover my arse so to speak.
Being an "IT man", and knowing the HDD in my 2011 unit is at least 5 years old, i'm nervous.