Hey Chevelle:
I am going to agree and disagree with Wizard. Black & White Night is classic if you like RO. If you have access to both DVD and Laser Disc, I would argue that the older LD is better, but that is my opinion. I have had both of them.
On CDs of RO's material, you have a generous amount of choices, but you may have to look a bit. For the RO fan, (I am, and had the priviledge of seeing him in concert on several occasions) most will I think agree that his early material is where his true talent expressed itself. The bright spots of his early work are available on CD, and the quality is very good. Specifically, Lonely & Blue (first album) and Crying (second album) and In Dreams (third album) are available as single CDs and Orbisongs (1966) has been released on CD as a double with In Dreams, but I think only in the European market.
If you are serious, send me a private email. I may have some extras.