mp3HD TECHNOLOGY

Thomson, which with German research center Fraunhofer Institute IIS co-developed the MP3 format unveils now the new mp3HD
The new format, uses lossless compression, meaning that an mp3HD file made from a WAV audio file will contain all the information required to create a WAV file bit-for-bit identical to the original. (100% bit-exact replica of CD tracks)
mp3HD files remain compatible with existing MP3 players because they are in fact standard MP3 files.
mp3HD files will be around four times bigger than corresponding MP3 files
Now you can create your own mp3HD files with this encoder
source:All4Mp3 and press-release