Since the filename is truncated, here is what the E... likely hides. The most common full filenames for this release are:
The 480p Blu-ray rip is technically a derivative copy. However, if you legally own the Blu-ray disc, creating a 480p personal backup for offline use on legacy devices is generally considered fair use (though check your local copyright laws). 2001.A.Space.Odyssey.1968.480P.Bluray.English.E...