The press and public may only be excluded when publicity would be prejudicial to the public interest. With this in mind, the number of copies of information, whether paper or digital, should be kept to a minimum. I often invite members to return their papers to me at the end of a closed session if they have no further need for them. An audio recording is of no use during the meeting and I would be concerned about the justification for taking it away for subsequent use. It is common practice for a Clerk to record the meeting to assist with the preparation of accurate minutes, but the purpose, use and disposal of such recordings are clearly defined.
Members of the Council may record the public sections of meetings and have the same freedom as members of the public to make them available to the wider public, on YouTube for example. This is simply open and transparent government, but disclosing confidential information is a breach of the Code of Conduct.