Looking for some free WAV to FLAC Batch Conversion Software

I originally ripped my CD's to WAV for storage and to MP3 for playing on portable players.
But I now realize I should have also ripped them into FLAC as for playing in my house.

The WAV files are in directories (Artist\Album\Song) so I would like
some software that will pick up the path and use it to tag the FLAC file.

The alternative it to re-rip them but I would like to convert them if possible.

I'm looking for something fairly simple since I should only need to
do this one time since going forward I will be ripping FLAC as well.

Thank you
 
Most conversion programs use ffmpeg as the backend application which you can also use in a standalone command line mode.

Try FFmpeg-batch, its a application with a graphical user interface front end and uses ffmpeg as the back end.

AIMP is a audio player which also has built-in batch conversion using ffmpeg.