,mp3 files and other music files typically compress 16-bit stereo 44.1 KHz sampled CD content to approximately 1-2 megabytes per minute of audio depending on the compression method used (10 to 20% of the original uncompressed size on a CD). 2000 .mp3 song files with an average length of 4 minutes using a 2 megabytes per minute compression method would use a maximum of about 16 GB of storage space.