Star Trek � The Motion Picture Audio Commentaries AC3 (1979)
Director�s Edition with director Robert Wise, SPFX director Douglas Trumball, SPFX supervisor John Dykstra, music composer Jerry Goldsmith and actor Stephen Collins


https://rapidshare.com/files/1601112733/ST-Motion_Picture_DE_Commentary.rar

Too bad the link is dead. Of course I do have the dvds and blu-rays.