updating MP3 tags

here's my problem. I was using Creative Media Organizer before converting to using itunes. I notice when I update the standard Mp3 tags in itunes, the tags in the original Mp3 files do not get updated with the changes in itunes. Creative Media Organizer at least had a function to update the tags in the Mp3 files.
Someday I might wish to use another media player/organizer than itunes and I do not want to have to manually re-input tag info for 60,000 mp3 files.

Also, when I let itunes reorganize my Mp3 files, it did not delete old files when it copied files to new folder. This created a massive amount of duplicates to deal with when I had to use a backup because a disc crash.

Ah, multiple MP3 files. That may be my problem. Since Creative Media truncated Album titles, I completed the Album titles in itunes, which transfered the MP3 files to a new folder but itunes did not delete the old folders.
thank you.

cleaning all these files up will take time.

thanks Chris.
I had so many MP3 files that lost the Artist, Album Artist, and Album info that I didn't want to have itunes reorganize because I might lose the artist and album folders and I'd then have such a hard time finding the appropriate info. I copied all the Mp3s to another drive and now I am cleaning them up (big job with 50,000 MP3 files) and reimporting them to the original drive.

Here is a weird thing!!!!!!!! When I import the Mp3s from the other drive, about 30% of the album folders don't get the 1st song imported. When I try to import that one file it still didn't work. Only after pulling the file up in my DAK Wave & Mp3 editor and saving the file will itunes import the file.