Creative MP3 Tag Issue

I own a Creative Zen W:Vision.  I have approximately 8,000 songs on the player.  The MP3 media management software that came with the player is very limited.  It does not allow me to group changes the Mp3 tag data.  I have to change one record at a time.  Also, within the tag data of some of my MP3 songs there are Artist Names with trailing spaces.  The player treats "ACDC", "ACDC " and ACDC  " as three separate Artists (based on any trailing spaces at the end of the artist's name).  I have hundreds of MP3 records i would need to edit individually.  I was hoping that someone may know of a tool that works with Creative Zen W:Vision that would allow me to either remove all the trailing spaces after the Artist Name within the MP3 file, or have a Creative tool that would read my player and allow me to edit multiple records at once.