Yeah, they can be mastered from CDs. From a Jazztimes article:
“Lower-quality EU-based labels have no access to master tapes and thus use questionable digital sources, including CDs. … High-quality EU labels including SAM, Speakers Corner, Gearbox, and Alto Analogue also cut vinyl from master tapes. But if cost is an issue, consider product from these inexpensive, digital-to-vinyl labels: Wax Love, Wax Time, Jazz Images (which creates beautiful alternate album covers using rare photos), Jazz Wax, DOL, Vinyl Lovers, Doxy (not Sonny Rollins’ label), Vinyl Passion, Jazz Time, Green Corner, and Pan Am.”
Personally, I don’t plan to ever buy another DOL pressing again. It’s a Russian outfit long suspected of using CDs to master vinyl records. I did slip up and buy a DOL copy of Kenny Burrell’s “Midnight Blue”. The Blue Note Classic reissue is far superior.
Ken Micallef examines jazz and the vinyl renaissance, explains the controversy over digitizing, and offers practical tips for would-be LP collectors.
jazztimes.com