Hi, if you're on the S970, all your files were on the USB pen drive or User drive; just put your S970 pen drive in the Sx900 and all normaly will play nearly as before; you'll have to adjust the EQ of the Sx900 to sound as you like; You can't put all the files in the root of the pen drive because the SX will not be abble to read all the files; you've to make folders; just remember that if you want to see the styles on the pen drive, you have to select a style on the touch screen, ..... Some voices will be missing perhaps (expansion voices, and styles not on SX); all the best Patrick