Fee-based service, pay for a year at a time. Email, web storage, offsite virtual hard drive, various free tools and files. 60-day free trial available.
Free MP3/AAC player/organizer for Mac and Windows that tags, rips, burns and converts audio files and integrates with the iPod portable music player and iTunes music store.
All-in-one application from Apple with free AAC/MP4 encoder and decoder from QuickTime, rips CDs, organizes music files and connects to its Music Store.
Since version 6 this Apple multimedia software decodes MP4 files. The basic player is free, the commercial Pro version also encodes MPEG-4 video and AAC as well as 3GP content.