I am pretty certain i have this on tape, recorded from a friends LP all of 20 years ago.
If my failing memory is correct, there was also a couple of pretty astounding Liszt/Verdi transcriptions, but i might be wrong.
I am not always impressed by Ashkenazy and his disk of the Rach Concertos I actually threw out of a train window in disgust, but this was the best Mephisto Waltz i have ever heard and he completely lets rip in all the right places.
I am not very good at labelling things, but if i find it you can have it.
Thal