I bought these recordings many years ago on a double DG LP which is now so heavily played that it is almost worn out. And the 5th was split between the two LPs which was always annoying. So it is an absolute delight to be able to download them in digital format. They are classic accounts of the last three Tchaikovsky symphonies, and one can just hear the pathos and desolation of the Russian steppes in them. The Leningrad Philharmonic brass sound is for my money unsurpassed. The Yevgeny Mravinsky recordings are now nearly 50 years old and I have yet to encounter another reading, historical or modern, which is anywhere near as good.