I bought this series from eBay as recommended by Vern. The cost was $20.00 which included shipping. You get a set of 4 DVD's which contain 13 episodes each of which is about 45" long.

I cannot say enough good things about this purchase. The plots, the direction and the acting by Anthony Andrews are all superior.
I believe everyone on this board would enjoy watching these. My wife hates war movies but enjoys watching this series just as much as I do.