Kindly go through the features of the above software, that is licensed too.
1) script can be used to convert wav to MP3 just by few clicks.
2) Artist Name, Track Title and Album Title will be copied from the source
3) The time duration of all the individual files will be read and maintained in an excel sheet which will be placed in the Parent folder itself.
4)FTP Uploading can also be Automised Based on the need.