I've recently been re-acquiring a few recordings re-issued by the Dutch label Pentatone, for anybody who hasn't listened to some of their re-mastered classics series I recommend giving them a try. I have just been listening to the old Ozawa/Boston SO recording of Berlioz's Fantastique, it is a hybrid SACD with a quadrophonic mix and a regular stereo mix on the CD layer which is terrific, and they've re-mastered the classic Kubelik Beethoven cycle in which he did each symphony with a different orchestra. Sadly I have to listen to the quadrophonic mixes at a friends place as he has a surround set up but even the CD stereo layers are superb and display a sensitive and competent re-mastering which restores faith in the concept of re-mastering.