There was only one DvD movie and it was so low budget it had a cast of less then half a dozen and two very small sets and almost no props. It looked like one of Linkara's videos which is fine if you are one guy working out of your living room,it's not so good if you are trying to tell B5 style stories for mainstream viewers.
Also Crusade was canceled before the first episode air,the scripts and costumes were messed with by the network,and the episodes were aired out of order. The building blocks were there for it to be a really good series but it never stood a chance because of the way WB and TNT treated it.