I differ with the first reviewer. Now I can't claim to be a dedicated fan of Medtner even when championed by the marvelous hands of Marc-Andre Hamelin, who recorded all the major piano solos back in the mid 1990's. If what you seek is a full survey, spiked with phenomenal dexterity, an overall lyric approach, virtuous musicianship and a compact focused sound, he's your man. To fault Dershavina for not having his technique is problematic, as no one else on the planet apparently does either; certainly not Hamish Milne or Geoffrey Tozer.
But in Hamelin's hands Medtner remains what he always was, a poor man's Rachmaninoff. Dershavina opts for a more epic approach, seeing him esentially a contrapuntalist romantic (as you might expect from her magnificent Goldberg Variations.) Her speeds in scherzando sections is somewhat slower than Hamelin's, but the music reveals itself to our ears more ably when we are not gasping at the latter's hyper-virtuousity. Dershavina plays a live instrument with a powerful bass which she exploit with relish. Her technique is top drawer in nearly every respect. She also a musician in her bones, the way Annie Fischer, Maria Grinberg and Alicia de Larrocha were. Little in the score escapes her attention. Her only fault is a failure to generate enough of a pianissimmo when useful, and this makes for a certain tedium that when applied to a composer who - let's face it - can be tedious more than a little, makes listening a trial at times.
I suppose I feel at this point that after her Goldberg Variatons for Arte Nova/Sony, every recording she issues is worth buying. Some major recorded repertoire is hopefully in her future.
I am giving the recording 5 stars rather than 4 mainly as a corrective to the amazon other rating which is far too low.