(There's no video for SIGMA Photo Pro Ver.2.0 yet. Please contribute to MR and add a video now!)
SIGMA Photo Pro 2.0 bundled with SD10 to process .X3F file.
(36.79 MiB / 38.58 MB)
/ DiskCopy image, compressed w/ Stuffit
Tested on Simplified Chinese Mac OS 9.2.2 and Mac OS X 10.4.11.
Emulating this? It should run fine under: QEMU