Auto tagger mistake?
 

Is this in right section?

How does an auto tagger work?

I have an MP3 file of
Artist - Scars of Life
Title - Bullet with your name.

but when I run auto tag it returns following
Artist - Evanescence
Title - Pista Sin Titulo 6asda

why?

If its a library bug/Mistake then I wish it to be fixed.
BTW auto tag doesn't always work perfectly.

It's not a bug.

Autotagger uses the Gracenote Database to get it's autotag information. So if your song isn't already in it's database then it won't be tagged properly. (There is no way for you to add it with out actually ripping the CD either) Most of the time it's pretty accurate....sometimes it's not. Be sure to make sure your tags look correct before applying changes. It will save you the headache.

I also find that autotagger works better with whole albums selected rather than individual tracks.