I don't own an Orville, and I can't access the user examples you are talking about (seems that you need to be a registered Orville user for that). Anyway, here is how I would try that on a H8000, and that might work on an Orville:
-load the sif files into the Orville (via card, or serial, or MIDI)
-import the files from the computer, maybe from vsigx, and they should come as sig files.
Sorry, I have used only sig files, so my suggestion might be really silly. But I'm just wondering if this trick could work. If you send me a sif file, I would be happy to try, just to see if the files come back in .sig format.
