Abba's Abba GoldPerhaps more than any other Greatest Hits compilation, Abba Gold has come to define a band's career on one disk. More than that, its release in 1992 heralded the critical rehabilitation of a group which had, since its demise a decade earlier, become little more than a memory of trashy costumes and cheesy tunes to many people. Here, Elisabeth Vincentelli charts the circumstances surrounding the birth of Abba Gold, looks at the impact it had on the