mp3HD: New lossless MP3 format explained
French media behemoth Thomson has announced mp3HD, a new lossless 'hybrid' MP3 format, which not only offers the sound detail lost in a normal MP3, but remains compatible with your existing MP3 player or iPod.
It's called mp3HD and still uses the traditional .mp3 file extension. Simply put, it works by storing a conventional lossy MP3 track that standard players can play, alongside a 'lossless' version -- both audio streams are contained in one single MP3 file. It's similar to how hybrid SACDs work.
Ideally this would appeal to users who want to enjoy lossless audio at home, and universally compatible MP3s on the commute, without having to rip two versions of the same song.