When you buy it you get a code for downloads and you can burn discs and/or play on your devices. Then when you eventually get a Blue-Ray player, and you will, there it is.
Interesting man. First met him in Chicago circa 1966 - he was in town visiting family and performing an organ recital IIRC. Last saw him sometime in the last decade (April, 2018 I think) when he was performing in Muskegon, MI.
This reminds me, one nite at Andy's in Chicago the late, lamented Sonny Turner grabbed a mike and sadly announced his condolences to Sammy Davis and Ella Fitzgerald on the failure of their new restaurant Sam & Ella's.