Not sure if this is still accurate information.
https://www.aamc.org/media/24971/download
In a AAMC document it states the following information.
"Lecture Video Recording and AttendanceQuestions:
1) Are first and second year class lectures VIDEO recorded?
2) If first and second year class lectures are VIDEO recorded, when are they made available to students?
3) Are first or second year medical students required to attend lectures?"
"12. Indiana University School of Medicine
1) We have a 9 campus, 1 school model, so what is done at each campus is slightly different. A tour largest campus (~150 students), we do have video recording for virtually all first and second year large class lectures (there are still required small group courses that are not recorded, and frequently review lectures, etc. are not recorded)
2) Made available directly after each lecture
3) Students are not required to attend the large lectures (i.e. attendance is not taken), but again, there are other smaller courses that have required attendance. All of our other campuses have a much smaller number of students, so those classes are usually required.