Thank you NELA,  It's certainly helped me as I don't read music. I'm actually a keyboard player although started out on guitar and am now getting back into it. My claim to fame is that I went to school and played guitar with John Lennon before he formed The Quarrymen.
Once you have the song on the Riff Station screen you can then stretch it, change key, change tempo and find parts which aren't always apparent at first. Very useful software.
Spikey

I've been using Riff-Station for quite a while and find it very useful for getting the chords for a song by playing the Mp3 through it. Also you can get those chords in any key whilst it's being played in real time. There are other useful features and I think it's well worth the money.
Spikey