RealPlayer Compatible Pedal

I sometimes have the need to manipulate (fastforward, rewind, etc.) audio- and video-recordings. Is there a device, a foot pedal, that will allow me to stop, start, rewind, and fastforward audio- and video-recordings without taking my hands off the keyboard? I am transcribing interviews, and a pedal that is compatible with RealPlayer will be useful. ZNet referred me to you.

Thank you,

Jeffrey Lofton
202-707-6432