The Memory Player uses proprietary software and processing which extracts a pure bit perfect copy of the disc on to a hard drive, then the data is processed, then played back from solid state ram.
The only other player that does this is a $100k Sonic Solutions work station, also Exact Copy does not do this either!
I've never heard the MP, so I can't comment on its sound quality. It must sound great, because there's less jitter when you don't have to read from a spinning disk. But bit-perfect ripping, loading a song into RAM, and playing from RAM isn't novel. Exact Audio Copy (EAC) alone doesn't do this, but EAC (free) + a RAM disk (Superspeed RAM disk $35) does. Is there some other processing in the MP that differentiates it?