<<I agree with Denys. Adager's DETPACK (Detail Repack) doesn't lose chronology ... it was the first detail repacking tool available, and all modes of running it (Serial, Chained, and SuperChained) retain the chronology of entries on any and all chains.>> I'm a little confused by these responses. We seem to have a number of people "riding to the rescue" to save the reputation of one database utility or another, apparently to "defend" it from some putative attack. Looking back over the thread, I don't see where any claims were made by anyone that any specific tool does or does not preserve the chronological sequence of chains on a sort/pack operation. What *was* said is that the only "guaranteed" way to preserve the chronological sequence of a chain under all legitimate modification scenarios is to put a sort on the chain. Steve