Here, for a very competitive price (much cheaper than full DG), a beautiful box set excellent interpretations of works by Mahler, by leaders and orchestras. Some records are old (1949 bruno Walter), but the remastering is very good. Certainly some symphonies are on 2 cd, which is not very convenient. But I have the box symphonies by Solti and it is already happening, is it can be difficult to do otherwise. Finally I find critics on the well severe booklet. The text me more interested, even if it does not accurately informed about the works. And on page 15, it is explained how to access the works sung texts, which can be very helpful.