I have been having a problem getting DVDStyler to generate an ISO output file in NTSC format. The source is NTSC, the NTSC button is selected under "Options," under "Default video format," and under "New DVD," but still DVDStyler is generating PAL output. So either (1) I'm doing something wrong, or (2) DVDStyler only generates PAL output, or (3) there's a bug in this version of DVDStyler. Can anyone help identify what the problem is? Thanks!