Let me start by stating an interest: I think that "Babylon 5" was one of the best sci-fi series ever to air on television. The grandeur of the story arc, the vision and inventiveness of its creator, the liveliness of its scripting, and its excellent ensemble casting all came together to make something worth watching again and again. This was a future you could believe in. You might not particularly like the idea of living in it, but you could believe in it.
And as a fan I bought and watched this latest offering, ending up with mixed feelings. The stories are not bad, if nothing special - they would have made good A or B storylines in a normal "Babylon 5" episode. But the sense of the B5 universe is not there, there isn't enough material, and the incredibly bare-bones production values did not help.
For devotees the DVD is worth having, if only because it's more B5 and evokes at the very least nostalgia. For others - well, stay away, it is more likely to put you off than draw you in, which would be a disservice to a great series.