OK... I did the pause thing. I have the files from the zip sitting in D:\Shares\Video\DVD (I'm using WHS). This is the folder just above the subfolders which are the rips themselves. WHen I double click, it launches to c:\windows. So, it is trying to make an ISO out of each of the subfolders under c:\windows, and since the MKISOFS.exe file isn't sitting in that directory, it is returning an unknown command message. Thoughts?