PIXMA iP7220 Faded Colors when printing direct on CD

I just purchased a Canon PIXMA iP7220 for the purpose of printing CD labels Direct To Disc.

When printing on disc, the colors are very faded.  Black prints as a very light gray.  Almost unreadable.

When printing on paper, the colors (including black) print fine ... as expected.

This happens regardless of what software I use to print -- My Image Garden, SureThing CD Labeler, Adobe Photoshop.  I've tried two different printable CDs with white printable surfaces: Verbatin and ridata.  I've also tried adjusting the darkness, contrast, etc.

I'm running on a Lenovo laptop, 8GB RAM, Windows 7, USB to printer.

All printer tests and test sheets print fine.

Anyone have the same problem?  Anyone have a fix for this?

Thanks