Former U.S. president George Bush sounds relaxed and reinvigorated as he recounts the major events of the first two years of his presidency, 1989-1991. Those were remarkable times, encompassing the end of Soviet hegemony in Eastern Europe and the Gulf War, and his voice captures his own wonder that they happened on his watch and that he successfully dealt with them. Brent Scowcroft, Bush"s national security advisor, also narrates parts of the tape, explaining his big-picture take on events that Bush relates on a more personal level. Other parts of A World Transformed, those involving neither author"s point of view, are read by Condoleeza Rice, former special assistant to the president for the Soviet Union. (Running time: three hours, two cassettes) --Lou Schuler