Reply to Traktor Tags

Question: What exactly does Traktor save to the audio files and what does it saves in it's own database files?

If I change the comments inside Traktor will that stick with the audio file if I transfer it to another computer? If I have a windows machine and also a mac both with Traktor on them can I simply move the database files over to the other and keep this information intact? If so does anyone have an idea of what folders would need to be moved to accomplish this? Thanks.