Hi Paul,
I'm not certain I'm on the right track here , but isn't UDF used for optical
drives only ?
My reference :
http://support.microsoft.com/kb/321640/en-us
At the bottom of the article :
MORE INFORMATION
You are most likely to see UDF in the following cases (this is not a
complete list):
• DVD-ROM or DVD-video.
• CD-Rs or DVDs that were recorded on certain consumer electronics devices
(such as DVD-VCRs or digital cameras).
• CD-R/RWs that were recorded on a computer recorder through the use of a
"drag-and-drop" recording software package.
• DVD-R/RWs or DVD+R/RWs or DVD-RAMs that were recorded on a computer
recorder.
Some common "drag-and-drop" or "drive letter access" recording packages that
can generate UDF-format discs are:
• B's Clip (from BHA)
• DirectCD (from Adaptec/Roxio)
• InCD (from Ahead)
• PacketCD (from CeQuadrat)
• RecordNow MAX, MyCD, PrimoCD, and PrimoDVD (from Veritas)
• Write DVD! (from Software Architects)
If you have some sort of UFD image of a disk , you might want to use some
kind of Virtual CD software to mount that image.
Hope this helps.