Ah ok, yes, something like that would be possible using a batch file. Sorry, I must have missed the bit where you said 'separately' and instead focussed on the 'hundreds of files'. All the command line options are still there. I've looked through some of my previous examples and they seem to be for converting a folder full of folders into individual ISO files. I've made a few tweaks and it might now work for files... but it's untested. Edit: now tested Make sure Explorer is set t