Editing file info on phone SD card

[schauch]

Hey guys, I keep all my music on an SD card in my phone. I want to edit the file information for a bunch of the songs - a lot of them don't have the right artist name, album name, etc, so it makes it hard to search for them on my phone. However, when I hook my phone up to my computer through a USB cord and go to the card's folder, it won't let me change anything about the file except for the file name. Is my only option to just change everything on my computer and go through loooooooooong process of deleting and recopying everything back onto my computer? Really want to avoid this.