The dataset is ~84GB in total, broken into 43 zip archives of 2GB or less. The list of the urls to each archive is provided at:

https://groups.csail.mit.edu/graphics/deep_motion_mag/data/file_list.txt

You could use wget or your favorite software to download:

wget -i https://groups.csail.mit.edu/graphics/deep_motion_mag/data/file_list.txt

Pre-processed tfrecords is also provided. See tfrecords_list.txt, or run

wget -i https://groups.csail.mit.edu/graphics/deep_motion_mag/data/tfrecords_list.txt