The equipment

Cassettes are almost obsolete in the film industry as hard disk drive has taken over; but the is a disadvantage to this as work can be lost this way and there is no hard copy like there is with a cassette tape.

an advantage of using a tape is that you will always have the original footage, some it can be part of an archive; if any work was to be lost you can always use the raw footage as you will have it all recored on tape.