Going to check this out tonight. I have this issue with Ma... I know, I can tell that he's an outstanding cellist... But I've really only heard his interpretations of classical pieces I'm otherwise familiar with, and have generally found them technically proficient to the fault of lacking emotion. His performance of one of my favorite pieces, for instance, the second, allegro scherzando movement of Rachmaninov's Cello Sonata in G Minor (Op. 19) (pf accompaniment Emanual Ax) just... lacks any feeling of scherzando, playfulness, to me. Maybe it's a restrained image of playfulness, appropriate for the era of the composition, but I just feel... very little when I listen to that performance. Compare to (and this is not my favorite performance either) Natalie Clein (pf accompaniment Charles Owen) which does not approach the technical proficiency, but offers so much heart.
Anyway, I know Ma has plenty to offer, but I haven't managed to break out and find it yet - I look forward to giving this one a listen.