As with any file format, there are some downsides to storing your entire music library as WAV. The most common ones that users contend with are:
Large file size: Because WAV is uncompressed, the file sizes are bigger. Sharing your art becomes more costly and time-consuming with WAV files if you’re a musical artist, producer, or DJ. The difference is substantial: WAV files can be ten times the size of their MP3 counterparts. If you have an extensive music library that you want to be the best quality possible, how you’ll store it becomes an issue.
Limited file support: Beyond data and storage issues, apps and devices don’t widely support WAV files. If you’re trying to share your music with as broad an audience as possible, using WAV files limits who can access and hear your music or podcast. If you prefer listening to WAV vs MP3, you may have limited playback options.