Teenage Mutant Ninja Turtles 2003 Season 3 Box 1 + 2 and Season 4 DVD's
 

Have up two listings on eBay. One of them is for the Australian Season 3 box sets (Box 1 and Box 2) along with the American release of Season 4 (2 discs, 14 episodes). They're all brand new and have no loose discs.

https://www.ebay.co.uk/itm/285828521503

The second listing is for Season 4 brand new. One of the discs is loose though.

https://www.ebay.co.uk/itm/285828527468