Hi. I have had my Casio WK-7600 for 3 years and bought it mainly to record my own songs. I have had no end of trouble doing this as with every new SD card or reformatted card when I record, a glitch occurs, like a jump from a scratch on a CD, in the middle of my songs - sometimes more than once on a recording. It is very annoying and defeats the whole purpose of me buying the keyboard as I am using the recordings as backing tracks for live performances. An agent told me to re-initiallize the keyboard but I have no idea how to do that! Please help.