Yes, some of the Kobayashi/Czech PO Mahler SACD's are re-releases of Canyon CD's from the last 10 (or so) years. However, some (M2, M3) are new DSD recordings made by Exton. I have a CD-R of the Canyon Kobayashi/CPO M1, which I absolutely love. IIRC, there is also an Exton SACD release of M1 with Kobayashi/Japan PO which got a poor review from Hurwitz.