What tapes is the question. And if far enough into 80s the next is did they use a digital delay to create the preview path. Your ears will probably tell you
how were copies of vinyl made in "third-party" countries
I have some LPs from the former Yugoslavia, Holland, Hungary, Russia (bought them way back when in bulk) and now I wonder what the process was and how close they are to the original?
I assume they weren't digitized, they were released in the 70s and early 80s. Anyone knows what they would receive from the recording studio/company/warehouse? Tapes, the "negatives"? Are there copies considered better than others?