I had the CVP 96 and I know have the CVP103
Good things about the CVP 103:
.More Styles (with 4 variations instead of 2)
.More options (copy disk, for example)
.Less than 40% compatible with older sequences (from CVP 55, 65, 75, etc.). It does not recognize songs from old Clavinovas as it should. CVP 92, 94, 96, 98 were capable of playing any old Clavinova song (more than 80% accurately)
.If you're a person that likes to use DUAL mode, I'm sorry for you. In the other CVP's, you could change the volume of 2 simultaneous voices very quickly. Now you have to press a lot of buttons to do the same thing.
.Style files from previous CVP's WON'T work 100%. I adapted some. Some could not be adapted.