WHICH Hungarian Rhapsody? Liszt wrote 19. That is, of course, assuming that you meant Liszt.
And by the way, they're all difficult. I really don't think you can simply get one under your fingers by studying MIDI files or some sort of tutorial video. I am a pianist and teacher, and I have only two of them under my fingers.
There's a little thing called "piano lessons". If you have talent and ambition, they just might work. There are no short cuts to the Masters.