Good question...I think it's because I set the DiscAddress to relative rather than absolute. Most CD skins use absolute, so that each CD has a unique number. I figure no one's going to select a track from a CD that's not visible on the screen anyway, so I went with relative.
Open question: What's the advantage of using DiscAddress=Absolute for CD-based skins, other than it more closely simulates a real CD jukebox?
# SelectionMethod: Alphanumeric,Numeric,SingleLetter,SingleNumber
SelectionMethod=Numeric
UseZero=True
HighNumber=9
HighLetter=Z
DiscAddress=Relative
ebateman21