Schubert's later works tend to be greater, more profound and ambitious, than his adolescent stuff, so this twofer with the mature masses and one or two smaller items is the ideal purchase. Sawallisch conducts a wonderful team including DFD, Lucia Popp and Peter Schreier. For more detailed liner notes, you'll need to buy the complete sacred music box. I would have been grateful for more information, including the Latin/English words, and discs that weren't pink. But no matter.
These masses are the great religious compositions of the romantic era in music. They communicate a Beethovenian quest for faith in an era of doubt, a love of nature and of human society at its most brotherly.