iTunes keeps your media files like songs, playlists, movies, and ringtones, and it is the default program to manage your music on iPhone/iPad/iPod. Since every iDevice can be synced with only one iTunes library, you will need to rebuild the entire music library when your computer meets some hardware failure. Therefore, it is recommended to transfer songs from iTunes library to an external storage like flash drive or USB to make copies. Check american-writers.org/ for more info...
Is there a way to save a playlist to another device (for instance an external drive) using HPCM?
Rolled my own "method". Admittedly... my detailed description sounds pretty involved... but it is really not that bad and it only took me about 30 minutes... including writing some scripts.
Collection of song paths........ Utilizing SysInternals ProcMon executable, I set up a session to capture all ReadFile operations from the HP Connected exe PID only. In HP Connected, I then started playing all the songs in the playlist... just a couple seconds of each... hitting the next button until all songs in the playlist had been played. I then stopped the ProcMon capture and saved the session results to a CSV.
Filtering path results........ Using Excel, I imported the CSV (only the path column), filtered out all paths that were not the path to the music files, then used Excel's function to remove duplicates (HPCM will buffer the file several time during playback). This last step also provides the benefit of eliminating any tracks that may have been added to the playlist more than once. Now I have a list of all distinct paths to each file in the playlist.
To Android device....... My ulitmate objective was to put the files on an Android device and create a playlist of just the files in this list. So I scripted a copy operations from the source paths to a new root folder on my pc hard disk so that all files were copied with original folder structure. I then copied this root folder to the Android device under its Music folder. Now the standard Android music players did not provide a nice way to make a playlist from a folder... but I found and used a nice little Android app call My Playlist Maker that does just that. I only had to point the app to my Playlists folder (where it stores playlist m3u files) and the source folder of the music I want to include in the playlist.
It was necessary to reboot my Android device in order to make the playlist visible to the music player app.