Had a request to be able to pass the Category of the recording so that it could be used as a directory name for the recording.
A quick test by the requestor showed that WinTV2K created the requested directory if it was not present ... so looked safe enough to include the field in DABDig and not have to worry about checking to see if the directory exists etc.
Included code and updated DABDig.dgmarker to pass the parameter (as parameter number 12). While there - added Description to the Play command for consistency.
Made WinTVPVR command line processing perform substitutions and added new substitutable parameter - $CT (Category).
Added command line substitution to WinTVCap at the same time since some WinTVPVR users use that utility instead as it is less CPU intensive.