Applescript help for Exporting Playlist

Question

I have two Imac...... my business mac at a resturant/bar for djing and my home Imac for purchasing and orgainizing my music collection.
I frequently replace music audio and video files for better quality versions,
This is causing me headaches because at work we might have a lot of smartlists which are based on ratings and other tags.  I need to get the tags from the old files imported into the updated versions of those files.
I found this script which looks like it may solve my problem but I need help fine tuning it for my needs.
This script takes as input a Music.txt file created with iTunes' File > Export command. It then applies the song ratings found in this file to the same songs in the current iTunes library. The song name, artist, and album must match; otherwise, the rating will not be affected. If they do match, the current rating will be replaced.
IMPORTANT: Before running this script, the Music.txt file must be encoded as UTF-8. To do so, simply open Music.txt in TextEdit (or a similar editor) and re-save the file with UTF-8 encoding.
set the_file to Flix Media/Flix Music/All Media/Music.txt
set music_lines to read the_file using delimiter {return}
display dialog "This script may take a very long time to run, depending on the size of your iTunes library. (Processing a 2000-song library required approximately 20 minutes on a 2.5 GHz MacBook Pro.)" & return & return & "Do you still want to continue?"
-- Split the line at tab stops
set text item delimiters to ASCII character 9
-- Start at 2 instead of 1 to skip the header line
repeat with i from 2 to count music_lines
          set music_line to item i of music_lines
          set music_fields to every text item of music_line
          if length of music_fields is 27 then
                    set the_name to item 1 of music_fields
                    set the_artist to item 2 of music_fields
                    set the_album to item 4 of music_fields
                    set the_rating to item 26 of music_fields
                    tell application "iTunes"
                              set the_tracks to (file tracks of library playlist 1 whose name is the_name and artist is the_artist and album is the_album)
                              repeat with the_track in the_tracks
                                        set the rating of the_track to the_rating
                              end repeat
                    end tell
          end if
end repeat
Problem 1  
What am I doing incorrect with my file path?  My computer has a separate partition called Flix Media
This is what I typed :
set the_file to Flix Media/Flix Music/All Media/Music.txt
but it errors out on Flix Media.
The original script had this:
set the_file to choose file      
Problem 2
I would like to automate this script to run at night. (I have a few scripts that need to run at night prior to this.)
Is there any way to save the music.text file with an applescript, then re-open it in a textEdit and re-save it as a UTF-8 format?
It this could be done then the running of this script could follow.
Any help or ideas would be greatly appriciated....
Ron

Answer 1

I just figure what was wrong with my file path.
set the_file to "Volumes/Flix Media/Flix Music/All Media/Music.txt"
So all I need is help with problem 2.
Thanks.....
Ron