On 2010-12-20, at 16:37 , Caio Chassot wrote:

Could someone try to reduce this and take the notification center and iTunes out of the picture and see if it's just a problem with NSNumber?

Oh, that was easier than I thought.

   #!/usr/bin/env macruby
   n = 0x8C2CACEFCD8BBABA
   m = NSNumber.numberWithUnsignedLongLong n
   puts "%016X" % n
   puts "%016X" % m
   puts "%016X" % m.unsignedLongLongValue

Gives:

   8C2CACEFCD8BBABA
   0C2CACEFCD8BBABA
   0C2CACEFCD8BBABA