want to open Kodak Photo CD files (.PCD) in Photoshop CS5. In CS4 i copied file "Photo CD.8BI" from an older version into the File Format folder. This does not work with CS5. Any fix?

I have several old Kodak Photo CD with PCD image files.  I am now using Photoshop CS5.  Some years ago while using Photoshop CS4 I copied a file:  "Photo CD.8BI" from an older, CS2, version to the Plug-ins/File Format folder of CS4.  This does not appear to work with CS5.  Any fix?