Yes you can if you are using shares on your pc.
Make your playlist, save it on your pc, with a name such as mymusic.mu3.
Then open up mymusic.m3u file you made in a text editor (wordpad).
It will look something like this:
#EXTM3U
#EXTINF:367,Happy Birthday
\\MyComputersName\mp3\Happy Birthday.mp3
#EXTINF:389,Second Song
\\MyComputersName\mp3\Second Song.mp3
Where MyComputersName = Serving pc
mp3 = is the shared folder
Use the text editor to find and replace:
\\MyComputersName\mp3\
with
smb://User:Password@Domain/MyComputersName/mp3/
it'll end up like this:
#EXTM3U
#EXTINF:367,Happy Birthday
smb://User:Password@Domain/MyComputersName/mp3/Happy Birthday.mp3
#EXTINF:389,Second Song
smb://User:Password@Domain/MyComputersName/mp3/Second Song.mp3
Save your mymusic.mu3 playlist and FTP to your xbox to your playlist folder in your XBMP.
In XBMP go to your playlists and your playlist will show launch it and enjoy.
This is good for large music collections and works with XBMP24.
veg
oops I re-read your post and it looks like you want to make the playlist for your collection on the xbox harddrive - same Idea if you are mirroring your collection on your pc.
If you are then you can use the find and replace technique with the text editor. Just point to the right directory on the xbox:
Where my music is on the F: partition in music directory.
#EXTM3U
#EXTINF:-1,Happy Birthday
f:\music\Happy Birthday.mp3
#EXTINF:-1,Second Song
f:\music\Second Song.mp3
If you don't mirror the files it would be a lot of typing though.