I received the 14-disc Superman Ultimate Collection for Christmas. Mine was part of the batch that had problems with the two discs (non-director's cut of Superman I, Superman III) as discussed here:
http://www.supermancinema.co.uk/daily_planet/dvd2006/2006_disc_issues_qa.aspI followed the return procedure, sent back my two defective DVDs and got two DVDs that I confirmed to be non-defective (1978 sound -- woohoo!). The only oddity was that they really munged my last name, surprising as it's pretty hard to munge. I figure that I'll definitely know if I get any junk mail came because of this.
Then, today, quite unexpectedly, I received another two copies of the same DVDs. I'm wondering just how many more I'll get sent.
Not that I think owning multiple copies of Superman III is something I should necessarily be proud of, but ya gotta love Annette O'Toole and Pamela Stephenson...