I got it to work by doing the following in Norton 2011:

1) Click "Settings"

2) Under Computer Settings, AntiVirus and SONAR Exclusions: Click the middle "Configure[+]" link, for Items to Exclude from Auto-Protect and SONAR Detection.

3) Click the Add button and add your .dab file.

I've seen other posts suggest adding only the path to the file here (i.e., C:\Users\Me\Music), but I think that leaves a big security hole, as Norton will no longer scan anything in your music folder. So I specify the actual OrangeCD database file, and it works (i.e., C:\Users\Me\Music\MyCDCatalog.dab).