The logical and physical lengths for the resource fork are returned in the ioFlRLgLen and ioFlRPyLen fields of a FileParam structure from a PBGetFInfo call. Can the new ToolBox interface module make that call? Zalman Stern, Caveman Programmer, Macromedia Video Products, (415) 378 4539 3 Waters Dr. #100, San Mateo CA, 94403, zalman@macromedia.com These things happen to other people. These things don't happen at all.--TMBG