I am a big fan of this French Wagnerian soprano. She sounds feminine, dignified, or even rapturous as Isolde and Brunnhilde.
I have collected everything I could by her. However, I have a question: according to cantabile - subito, there are the broadcasts of her Isolde (with de Sabata), Ariane et Barbe-Bleue and Gluck's Alceste lurking somewhere.
http://www.cantabile-subito.de/Sopranos/Lubin__Germaine/lubin__germaine.html
The Liebestod with de Sabata has been released a while ago (
https://www.youtube.com/watch?v=3WYLyhZzNNM). I wonder if anyone has any more info about the unreleased materials?