Entertainment tapes were information storage devices which contained recreational programs.

In 2266, Captain Kirk offered the crew of the Antares use of the Enterprise's entertainment tapes, but the Antares's captain refused. Captain Kirk was initially confused at this, but it was later learned that the Antares captain was attempting to make a hasty departure from Charlie Evans, a young man whom they had transferred to the Enterprise and who had dangerous psychokinetic powers. (TOS: "Charlie X")