Thanks for pointing me in the right direction guys, just found this;
Universal New Zealand have informed us that the rumoured 'U2 DVD boxed-set' has just popped up on their release-schedule for September of this year. The set will contain three of U2's "back-catalogue" titles that have previously been unavailable on DVD.
The three titles due out in September are:
Live at Red Rocks
Zoo TV Live from Sydney
Popmart Live from Mexico
It seems that the fourth title that was rumoured to have been included in this boxed-set, 'The Best of 1980-1990', has now been held back for a possible release at a later date as an individual title.
www,u2 new zooland.com