(There's no video for PhotoWorks 1.0.1 (Mac) yet. Please contribute to MR and add a video now!)
The Seattle FilmWorks file format is used for images created by Seattle FilmWorks Inc., a Film Processing company that was located in Seattle, WA.
archive.org : Seattle FilmWorks picture disk software : Seattle FilmWorks
Note: The file format SFW can be opened/imported by several programs and converters.
(261.35 MiB / 274.05 MB)
v2.3 (win) - v1.0.1 (mac) / ISO image
(555.07 KiB / 568.39 KB)
PhotoWorks v1.0.1 / BinHex'd, use Stuffit Expander
(2.46 MiB / 2.58 MB)
PhotoStreamer (Mac OS X) / compressed w/ Stuffit
The Gimp (under Windows) didn't recognize these SFW files.
Emulating this? It could probably run under: SheepShaver