least to most recent postings but the list of records being inserted is ordered from most to least recent the records are inserted in reverse order proceeding to step 844 queries executed in this procedure are committed to the data store after step 844 return to the caller at step 848 those skilled in the art will recognize that the present invention has been described in terms of exemplary embodiments based upon use of a programmed processor e g digital processing apparatus 1000 however the invention should not be so limited since the present invention could be implemented using hardware component equivalents such as special purpose hardware and or dedicated processors that are equivalents to the invention as described and claimed similarly general purpose computers microprocessor based computers micro controllers optical computers analog computers dedicated processors and or dedicated hard wired logic may be used to construct alternative equivalent embodiments of the present invention moreover although the present invention has been described in terms of a general purpose personal computer providing a playback mechanism the playback can be carried on a dedicated machine without departing from the present invention conversely the present decoder has been described in terms of a state machine and such state machine can be implemented as either a hardware or software based state machine moreover those skilled in the art will understand that the exact.