The best replacement for mp3 players is ipod.

The best alternatives to mp3 players are rated as following:
★★★★★  ipod
★★★  ipods
★★★  cd players
★★  ipod nano
★  ipod players
★  mp4 players
★  apple ipod
  hard drive mp3 players
  video mp3 players
  mp3 phones
  apple ipods
  i pod shuffle
  minidisc players
  i pods
  portable cd players

Your alternative for mp3 players is not listed? Suggest!
Speaking about mp3 players, one probably shouldn't forget about itunes.

Other search terms related to mp3 players and their ratings are:
★★★★★ itunes
You have in mind a companion for mp3 players and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of mp3 players in all years. Click on graph for more.
mp3 players
ipod
ipods