crashmatt
Death Scythe
I assume that the same is true for the Oh My Goddess OVAs (The two Animeigo discs that you released), and the Ah My Goddess feature film licenses. They were cel and paint jobbies that would benefit most from Blu-ray, as opposed to the Ah My Goddess TV series which was SD digipaint.
I do hope we get Ah My Goddess on Blu ray one day. Japan has it out on blu ray so they do exist. I suspect Manga's Licence for seaosn 2 expired some time ago. I missed the boat with this series as its before I started collecting.