Hi cubanresourceful,
You heard it correct - iTSfv has a song replacer function. It is a very simple implementation. If you are using iTunes to rip CDs, then iTunes will take care of replacing songs for you. However if you have obtained higher bitrate files by other means, then iTSfv has a Track Replacer Assistant which can do the following:
Method 1:
Suppose you have an album with 128 Kibit/s in iTunes
You obtain the same album with 192 Kibit/s and the file names are different so you cannot simply replace the old files
You can drag files into appropriate list boxes here:

So you can allow iTSfv to match the new files names to old files names
Make sure you have the new files in a different folder
Now you can replace the old files in Windows Explorer and iTunes will automatically update its database using new files
Method 2:
You can backup the tags of the files you are going to replace in iTunes; you can do this in iTSfv using the Tags tab:

Once you backup the tags you delete the tracks from iTunes
Remove the old files from Windows Explorer
Add the new files
Import the new files to iTunes – directly or via iTSfv by dragging them
Restore the tags
-----Original Message-----
From: it...@googlegroups.com [mailto:it...@googlegroups.com] On Behalf Of cubanresourceful
Sent: Sunday, October 12, 2008 23:19
To: iTSfv
Subject: Regarding Song Replacer
Peter,
The reason was to avoid duplication of tags stored in several places.
Most of the primary tags are saved in the mp3/m4a files itself.
Tags which were not saved in the files were saved in iTunes Library.xml
Tags that were not saved in either of the above were saved using iTSfv.
So this way virtually all tags were stored inside a file permanently.
Btw http://jiggafellz.isa-geek.net/jiggafellz-step-by-step-guide-to-secure-cd-ripping-with-exact-audio-copy/ is the ultimate guide for ripping MP3 using EAC. I am guessing you are using that already. :)
The Mp3tag's Tag Copy/Paste function is the best for retrieving tags from AAC to MP3. I have tried this to get tags from FLAC to MP3.

Cheers.
-----Original Message-----
From: it...@googlegroups.com [mailto:it...@googlegroups.com] On Behalf Of ptha
Sent: Wednesday, November 19, 2008 21:01
To: iTSfv
Subject: Re: Regarding Song Replacer
I did some checking myself and it seems the Sorting tags are stored in