I just recently found a new HD transfer of the Wyn Morris Mahler 10 from 1972. Compared to the available Scribendum CD it has superior sound and a lot of defects have been corrected (tape wobble in Purgatorio, various distortions), and the second drum beat before the Finale has been reinstated (because, after all, this is Cooke II and not III). There are many download alternatives and even possibilities to order CD:s or DVD-A:s.
http://www.highdeftapetransfers.com/products/mahler-symphony-no-10-morris-new-philharmonia-orchestraAnders