Hey you're right, giving it enough time returns the correct error message. So accessing a local share using UNC must also use the network I/O as you said.
Thanks,
Mat
Prerequisite:
A local or network share containing a file larger than 2048kB not valid for burning (a text document for example).
Command:
The following command-line call of Imgburn causes it to stop responding:
ImgBurn.exe /MODE WRITE /SRC "\\SERVER_NAME\SHARE_NAME\FILENAME.TXT" /DEST D: /EJECT YES /VERIFY NO /OVERWRITE YES /START /WAITFORMEDIA /CLOSESUCCESS
Note:
This has been reproduced on XP 32bit and Vista 64bit.