Hiss on some older recordings is not uncommon.
Never heard a recording that was inherently scratchy though. When something sounds "scratchy", there's usually another reason....something not going quite right during playback.
There are various masterings to CD of Kind Of Blue. I have a fairly standard issue CD copy from the 90's and it sounds outstanding overall. There is some hiss, but otherwise its like the ensemble is playing live in my room. Definitely not "scratchy".
Never heard a recording that was inherently scratchy though. When something sounds "scratchy", there's usually another reason....something not going quite right during playback.
There are various masterings to CD of Kind Of Blue. I have a fairly standard issue CD copy from the 90's and it sounds outstanding overall. There is some hiss, but otherwise its like the ensemble is playing live in my room. Definitely not "scratchy".