It looks like most other Music Management softwares but the real turning on feature is how it can Normalize volume level of your Mp3 collection to specific volume, so every song you play will have the same volume. You can change volume of normalization in Options menu
Default volume of normalization is 89.0 dB. If you want your song to be louder just increase volume from 89.0 dB to higher volume. You can also undo normalization if you don't like your new volume.

installs ok, but when it opens and does initial search for music, it freezes after finding all my music (approx 5.5GB). However, if I cancel the initial search quickly enough, it shows some of the music files and works. Is there a limit the size of overall files?

Android : Zortam version is also available from Google Play for free( with no ads.

Download Zortam Mp3 Tag Editor for Android at:
https://play.google.com/store/apps/details?id=com.zortam.mp3tageditor

Thanks,

Zortam Support

Thanks Zoltan - I mean, Zortam: easy install and automatic registration. If only all GOTD progs were like this! I could have done without the default scanning though.

Loaded just fine on my win 8 64 machine,.. and found my music just fine. I have a question- where do I put the license number? Or did it add it itself? Seems to be runnin fine,...