Roxio UDF Format

I have received several disks that have been formatted using a special Roxio UDF Format. Roxio provides a UDF Volume Reader for Windows, but no longer provides a reader for Macintosh. Does anyone know how to read these disks on a Macintosh? I have contacted technical support at both Roxio and Apple but no one has been able to solve this for me.

The disks mount on my Mac, but only show three files, one of them an .exe file. One of the files has a Graphic Converter icon, the other two are the generic gray square with the green .exe in the upper left corner. (Once in a while files with this icon will open with Stuffit Expander or MacLink Plus, but that didn't work on these files). When I mount the disk on a Windows machine with Roxio's UDF Reader installed, I can see that there is a Word document and several EPS and TIFF files. But the PC does not have a CD burner and is not connected to the Internet or a network, so I don't have a way to get the files from the PC to my Mac.

Any help would be appreciated ... I'm desperate. I've been doing this project annually for 7 years now, and this is the first time I have encountered this issue. There will be over 200 disks to be read. Two of the first 5 disks were in this odd Roxio format ... if that percentage holds I am in a world of hurt!!

G5 2.0DP Mac OS X (10.4.6)

G5 2.0DP Mac OS X (10.4.6) 1.5G Ram