Home-based Instruction for CI Users?

Seeking Home-Based CI Instruction Materials - I have CI who would like to have materials at home to help with my speech discrimination and sound recognition. I ideally would like cd-ROM or something interactive. I'm receiving speech therapy bweekly but I need extra practice at home. Where can I find those materials? Prices? Any information you could offer would be greatly appreciated. I have CI who would like to have materials at home to help with my speech discrimination and sound recognition. I ideally would like cd-ROM or something interactive. I'm receiving speech therapy bweekly but I need extra practice at home. Where can I find those materials? Prices? Any information you could offer would be greatly appreciated.