one of the first records to be recorded and released digitally was ABBA's The Visitors in 1981/82. i had it down as 1975 for some reason. might be some other release i'm thinking about.
it can be streamed on YouTube here:
https://www.youtube.com/watch?v=T_xFpjlrF38&list=OLAK5uy_l2j6c-5-nsg_DE_Vr3W07Lh0AhiJQhDww