I would think that they would have guidelines to govern submissions. Otherwise they would get a hodgepodge of submissions every time-which would be nightmare for admissions committees. However this is what they state:
"Applicants should submit a portoflio of artwork in one of the following formats:
Digital images uploaded to https://micaundergrad.slideroom.com (preferred method). Please refer to the directions below under "Format for Online Portfolio Submissions."
Digital images and/or time-based artwork on CD or DVD. Please refer to the requirements described below under "Formats for Digital Portfolio Submissions on DC/DVD."
35 mm slides