Outboard players for use with TV monitors can be gotten for around
New computers come with DVD players built in.
The discs can be used in an outboard player/tv or a new
DVD's take up less space than VHS tapes.
They cost about the same as VHS tapes.
The video quality is greater than VHS.
Discs usually have bonus material on them.
They have multi-lingual soundtracks and subtitles, and other audio
For teaching, the main benefit is in convenience of use: you can
quickly access any point on the disc without having to
Rewind or Fast Forward. Packaging and discs have indexes
to help you find the desired section.