Several times the AnyDVD software needed to obtain updates before ripping some Blu-ray titles. It specifically notes the Blu-ray title, my registration number, and presumably my ISP. Should I be worried that they collected information about an illegal activity?
The automated updates can be avoided by updating manually. I doubt the company records personal info about what titles are being played. They just provide info for the required update. As for personal info, the company is Caribbean based so I doubt that US and Canadian authorities have much legal standing. OTOH, consumers have little protection but I have no evidence of any abuse by the company.
To stop this sort of thing from happening, install a personal firewall like ZoneAlarm (there are others but that's the one I use). It will stop any software from making an unauthorized Internet connection.
Should I be worried that they collected information about an illegal activity?
Are you though? Are you just using this software to make back-ups of your personal blu-ray collection? Or are you illegally copying blu-rays you did not buy? (If the former, then you may not need to worry)