Same label, MUZAK. They're legit as far as I know. Manufactured in Taiwan for the Japanese market. The mini-LP jackets aren't as thick as most Japanese mini-LP's. The remastering, in my experience, is good to excellent. I don't know, however, where the transfers come from (original tapes, etc.)
Marte Röling - 15 titles total?
Do you have the George Russell Fontana? There was also supposed to be an Albert Ayler record with a Röling cover.
Found here.