From own recent experiences I`m afraid to say this is becoming truly hazardous means whether you`re lucky enough you`re served by a seller still having "old stock" (aka CD`s) or CD-R`s .... unfortunately both come factory sealed so you couldn`t tell "from the outside" ....
Reg Clifford Jordan best chances to get CD`s is to acquiere "Firm Roots" and "The Highest Mountain" which saw subsequently release as mid price double CD "Magic In Munich" and (IMO) were not repressed as individual CD`s so the stock "out there" should be CD`s ....