It now is on DVD you can now by it in stores.
Answer Season five of NCIS was released a couple weeks before the premiere of Season six, so it may be safe to assume that NCIS Season six will be out on DVD sometime in August. Answer NCIS season 6 will be out on DVD in America on 25th August 2009
NCIS Season 10 came out on DVD on May 16, 2013.
Season 5 of NCIS was released on DVD in the UK on 22nd June 2009
This date is not released until after the NCIS season seven finale.
NCIS season 5 was released on DVD in Australia on 9th May.
When it is over.
I would guess it would be around the end of August 2009 because that is when it normally comes out on DVD
NCIS SEASON 5 WILL BE RELEASED IN AUSTRALIA SOME TIME IN AUGUST OF 2009
August or September
September 2012
Go to Amazon.com and type NCIS, they have the whole series from season 1 to 6.
It will be out in August if your in North America :)