Lossless audio formats enable listeners to hear the full range of an original music recording without any drop in quality due to compression.  Some music streaming services, like Spotify and YouTube Music, only offer plans that let you listen to songs in "lossy" audio formats. This means that some of the original audio recording's quality is being sacrificed to compress the track in order to make the file smaller and easier to stream. Though this makes listening to music on a slow internet connection possible, lossy digital audio isn't equal to the quality you'd hear on a CD. Though this loss in quality can be hard to notice for the average listener, most audiophiles demand "lossless" music that preserves the full range of the original track. Different platforms brand their lossless audio plans under different names, including HiFi and HD Music. Though there are some differences between them, they all generally refer to streaming audio tracks that are presented in CD-quality. Some services even offer formats that deliver high-resolution lossless audio that exceeds CD quality.  Tidal, Amazon Music Unlimited, and Apple Music are some of the best music streaming services with lossless audio options, making them a better fit for listeners who want the very best quality. Spotify also announced plans to launch a lossless audio plan, but a release date has not been revealed. On the downside, lossless audio streaming requires more bandwidth so you'll need a fast internet connection and bigger data plan. To take full advantage of the audio quality benefits you'll also need a nice pair of headphones and a dedicated digital-to-analog converter, or a high-end set of speakers. You can learn more about lossless audio formats in our guide to HD audio.