while not my masters, over the past couple of years, I've been transferring a lot of DAT masters from Dave Flaschner, and more recently, DAT masters from Eliot Byron. these DATs are generally from '92-'00, with more from the early '90s and less from the later '90s. In general, the DATs have held up pretty well. That said, it's not uncommon that there will be one or two drop-outs that need to be patched with another source of the show. and there has been one DAT with terrible digi-noise throughout the set. But generally speaking, I'd say the majority of these DATs have held up rather well. I've been transferring these with first a Sony R500, and now a Tascam DA-20mkII.