What if I want to share a recording in a later semester, but a student in the recording declines to sign a FERPA consent?

Consent must be voluntary. Students cannot be compelled or required to give consent to release their student information as a condition of class enrollment or participation. If possible, you may edit the recording to omit the student or de-identify the student from the recording, but if the student cannot be omitted or de-identified, you may not share the recording with other students outside the course or with third parties, except to those with a legitimate educational interest or as otherwise permitted under other limited FERPA exceptions.