Reply to with Traktor- How are the 'cue points/grid' and 'Mp3 file' linked in the file system?

with Traktor - How are the 'cue points/grids' and 'Mp3 file' linked in the computer file system?

If i rearrange my track collection on another computer by copying the files..

and send the mp3 back to my laptop, by overwriting the mp3 files with identical named mp3 files, will they still have cue points and tempo grids?

What links the cue points etc and the mp3

Is it recognition of the mp3 file?
recognition of the mp3 file location or name?
or nothing once its overwritten I have to set up cues again?

how does it work?

Cheers