DNG Converter does folders, not files. i.e. you select a folder and it'll do all the NEFs (and everything else) in it.
Note: if you want do do individual files, you have to call it from the command line.
this seems to have worked (I am at work and just messing around with one or two NEF files that happen to be on my work computer). I will tinker about on my home machine later. Thank you very much for your prompt and informative reply.......I was becoming very frustrated with this.
Good - you're welcome.
…if you want do do individual files, you have to call it from the command line.
Or drag and drop the icons of individual files on the icon of the application itself.