The Solti- Decca Ring (Rheingold and Siegfried in particular) benefits from the 'dehissing' remix that was done a few years back. Gotterdammerung and Die Walkure would probably benefit too, but Walkure, being the most recently recorded, suffered least from hiss in the first place. I have only Siegfried in dehissed form, but the sound quality is very impressive. They say that because of the lower noise floor at one point you can now here the Sofiensaal cat, but that is probably a joke. I have never heard it anyway

michaelh