The Video Review module allows users with Admin privilege to lock videos to prevent their deletion.
Locked videos cannot be deleted manually or by the system during the automatic video delete process - after 30/60/90 days, as set on the General tab of the System manager:
Recordings can be locked in List View, by ticking their checkbox then clicking the padlock icon at the bottom of the list.
To withdraw locking:
Select the locked recording(s), then click the padlock button to withdraw locking.