I tried to create a UDF image from a image I have from Acronis true image because it is too large for a dvd, here is what I did CODE CLS @echo off TITLE Creating ISO Image of Miscrosoft Windows Vista ECHO. ECHO You image is now being created. Make sure oscdimg.exe is present. ECHO. ECHO Creating your ISO... oscdimg -n –m -u -u1 -u2 -bc:\boot.img e:\Mybackup\ c:\myvista ECHO PAUSE EXIT It did nothing when I launched it, I placed the oscdimg.exe in the C:\Windows\System32 My back up is in Drive E and I placed a folder with the name myvista in the C drive to store what image was created, Where did I go wrong ?