Lecture Capturing nowadays became quite sophisticated. The concept it still the same though: some technology is used to record instructors and their lectures digitally (using audio and/or video, screen capture, and/or PowerPoint slides, or whatever is displayed in class) and make those recordings available to students, ideally via the university learning management system. Instructors can do it at their desk, in a walk-in studio, or in a classroom.
There are many benefits to students (they can review the complex concepts covered in a lecture several times, use info to prepare for exams, or use the same technology to record their own presentations). Still some concerns remain (will students come to live lectures if they know they would have a recording?). I suggest we explore the resources and make informed decisions. My Diigo collection on lecture capturing resources will be the first stop!