Abstract: An apparatus and method of storing sheets of film-like material has a substrate which is wound and unwound from two rollers. An exposed portion of the substrate extends between the two rollers. A sheet to be stored is placed on the exposed portion of the substrate. The substrate is then further wound onto one of the rollers and unwound from the other roller. A counter determines the portion of the substrate upon which the sheet is stored by counting the revolutions of a counting roller and accumulating a storage count. To retrieve a stored sheet, the substrate is unwound from the roller upon which it was wound when the sheet was stored until the portion of the substrate upon which the stored sheet was placed is exposed. A counter counts the revolutions of the counting roller and causes the unwinding to cease when the storage count determined when the sheet was stored is reached. A bed is urged upwardly against the rollers to maintain tension on the substrate as it is wound and unwound.