It's not showing up on Discogs https://www.discogs.com/master/54585-The-Beatles-Rock-N-Roll-Music?format=Cassette Cassette bootlegging was huge back in 1975 and a big money business, this may have been a bootleg.
Definitely looks like a pirated cassette without official Dolby System logo probably to avoid copyright infringement but that didn't bother those making these cassettes in Bali in the 70's. Some were better than others but invariably recorded on cheap stock C60 cassettes which often ran out before the recorded music did. I had a classic Steely Dan Can't Buy a Thrill cassette I bought at a market stall in 1977. Hand typed track listing full of typos like "Dirty Work" listed as "Drity Wronk" ....
