Audio files come in a number of different formats. Some are lossy, such as AAC and MP3; they save space compared to the original files, but some of the original data is lost during compression. Some ...

Digital sound is nothing more than numbers. What separates one container from another is how those numbers are packed, how much data (if any) is thrown away, and which devices understand the result.

One of the biggest announcements made by Apple during the recent Macworld Expo was the news that, soon, all music sold by the iTunes Store will be free of digital rights management (DRM) restrictions.

Digital music comes in many different formats – almost everyone knows MP3 thanks to Napster at the end of the last century, but what about OGG, AIFF, MQA or DSD? Confused? Don't worry, we're here to ...