Ternot - stupid question: Why not exchanging the DBLayer u used in the php scripts to an ODBC one for accessing the original mdb? Should be possible right?
Well, accessing an access database via php is not that easy. On first hand side I created onex2 to support the syabas popcorn hour player... I just added a php script as additional presentation layer, because it was easy :-) Primary onex is still for my personal use.
I would recommend you create the export locally and copy the files to your nas in a second step. This is much faster...