ost

★A
The OST is the track abbreviation of the English original sound, namely"showbiz original voice big disc".The ost disc usually included with related music, sound effect of the showbiz work and the companion sound and the most was all publish by film film producer company.However all of the ost discs of official issue are a pair of cd discs of tracks, although quality best, face the sound effect of a feeling 5.1 tracks of not equal to dvd.

★Two
OST abbr.
OST=Technology(the United States) science of the Science and of the Office of technique bureau