Files are apparently converted (i.e. there are files produced) but the conversions are zero bytes, and there are no tags. I am not sure whether this is the reason, but when I start the conversion I get the error message '... a separate component must be downloaded from.....' I downloaded the one mentioned in other threads (the Nero AAC codec) and put the files in \encoder\m4a Nero, but the error persists. What am I doing wrong?