It depends of the interface of your player hardware. The most powerful players has folder browsing capabilities, so you can rename and sort the mp3 files using "Artist Folder/Artist-Title.mp3" or "Artist Folder/Title.mp3" copying/renaming options. If the user’s manual recommends to you use numerated file names, use "File#" option. It could be useful for old versions of mp3 players or DVD home theatres. Sometimes the file names are could be shown at the TV screen in the player menu, but with 8, 12,14,15 letters limitations. Please remember about these features.
