Otherwise, I want a recording of everything you have said while working. Actually, I want a recording of everything everybody said while they were working so my BigBrother TM audio processing technology can highlight anything that was out of line, incorrect, inappropriate, whatever.
I hope you understand that most lecturers/profs/researchers/people aren't concerned about their copyrights. They are concerned about their reputation and about what ill intentioned school administrators, students or politicians could do with these recordings. You just need one bad case of misuse of these recordings before some universities or unions sue the hell out of you.
I share your goal: education is good and the more people learn, the better the world will become. But if you start recording everything I say in my lectures, I promise you that they will be way more boring.