Compatible phone systems have a physical or virtual port which allows audio playback to users on hold.

Replay: Allows playback of a previously recorded fight.

The motions analysis technique usually involves a digital movie camera, and a computer that has software allowing frame-by-frame playback of the video.

Read before write allowed simultaneous playback and recording on the same VCR.

That capacity allows digital playback and synthesis of professional-quality music and sound effects.

It also allows playback of songs in random order.

The Resolution selector allows playback of the pattern in a range between 1/2 notes to 1/128th notes.

All these systems allow analog-to-digital audio storage and playback.

In practice, many DVD players allow playback of any disc, or can be modified to do so.

The program allowed playback of the produced music through various early sound cards, and could print the musical score on a graphics printer.