Those two (ip4600) are now in Printer Hell and I had tried the Canon MP610 to print my disks.
Fantastic! ...but, then it just stopped one day and tried a new printhead.
No success and no solutions ANYWHERE among the thousands of users with the same problem. Back to using the MX870 and will give up on the idea of printing cd's - unless someone can point me in the direction of a foolproof model.
My CIS also had to go in the bin after five years.
Nothing lasts! J