the full file name (i.e. F:\Recordings\ShowName\ShowName_20130312_20002100. ts) passed from NRecord that you want to copy is just %1:
if you want another file to go with it, like a comskip .edl file then:
copy "%1" d:\recoding
%~dpn1 just means "use the drive letter, path and name of the file passed as %1, but not the extension", which then allows you to provide a different extension.
copy "%~dpn1.edl" d:\recoding
I'm assuming from the way you worded your request that you already have something running that will see the file copied over and automatically transcode it? or do you mean you need the postprocessing.bat to do that too?