My video creation s/w crashes every time it tries to create data files past 4GB file size limit.

So I was thinking if there is any tool out there that can say emulate a drive linked to a folder (like SUBST) and then when you try to create files more than a specified size it will span across multiple files.

so actually the toll will work transparently and the application will never crash due to the size limit.

Also when the application tries to read this split file the tool transparently returns the file as if it was never split while actual data is still coming from the split files.

eg. I am trying to create a 10 GB file
I will setup this tool by
SOMETOOL filelimit=4GB <emulatedDrive letter> <actual physical location eg. c:\somedir>