Meh, can't be arsed :) not all tracks have id3 "files" it seems, and not all them have id3 tags! :) Will let you sort this out in some fancy tool way via iTunes or something, probably going OTT this way! :)

seb_mp3_names_from_files.py

#!/usr/bin/env python2

import os
import re

for root, dirs, files in os.walk('.'):
    for file in files:
        if file[-1] == '0':
            mp3 = os.path.join(root, file)
            print "MP3: %s" % mp3
            id3 = os.path.join(root, '%s%s' % (file[:-1], '1'))
            with open(id3) as id3_file:
                content = id3_file.read()
                artist = re.search('artist=(.*)', content)
                title = re.search('title=(.*)', content)
                album = re.search('source=(.*)', content)

                if artist and title and album:
                    print "%s%s%s.mp3" % (artist.group(1), title.group(1), album.group(1))

http://files.u-dox.com/jc/sebrio.zip (5.6Gb) → give that ~6 minutes to copy! :)