Playlex is a easy to use utility which allows you extract and copy the songs easily to any output folder location you specify. In order to copy the song files in your playlist from different hard disk location you just need to select the playlist and then specify the folder where you want to copy the extracted files from playlist.
For some reason this program does not work on my windows 7 with winamp playlist, but it works on my XP desktop and Vista laptop. You can try at your end.
Download Playlex and export your songs from your playlist