The encodedby and encodersettings tags don't work properly. I can use other mp3 tagging programes that see these tags perfectly while mp3tag doesn't see any value for them at all. Just a heads up for the next update release. It would be nice to have that information for exporting purposes.
The tag of this file does not contain any information regarding the encoder used to encode this file. dbPowerAmp retrieves this information by analysing the file (and Mp3tag doesn't do this).