Sony has always been a fairly NIH
-happy company. A bit of Google seems to show that they just don't want to support non-windows systems in their IC recorders.
Here's a report about a newer model. Not good news.
In short, if it can't be managed as a simple mass-storage device, then unless the software runs under wine or somebody has done the work to reverse-engineer the interface (unlikely in this case), you're pretty much out of luck.