When I look at file 3 (original) in both Winamp and MP3-Tag Edit I see:

Artist: Various Artists
Title: Ray Of Light / Madonna

1 and 2 are as you describe because I edited them to be

Artist: Madonna
Title: Ray Of Light

All three files show up in Emplode as

Artist: Various Artists
Title: Ray Of Light / Madonna

In other words, files 1 and 2 are as if you never edited them. Only Emplode shows this old, unedited tag. Every other MP3 program I've tried shows the new, edited tag.