Storing a digital audio collection may take up a lot of computer hard drive space. Very often the audio files are quite large in size. Moreover some collections need a large number of files to complete them. Thus the physical size of entire collections can be very big indeed. Personal computer hard drive space is limited. So it can be difficult storing large collections and this is a problem the enthusiast often faces. Another problem very commonly faced by enthusiasts is maintaining a collection of CDs. An audio CD usually has a maximum of 15 files. Thus while listening to music it is also required to change CDs regularly. If the files in a CD collection can be stored in a personal computer hard drive then these problems can be tackled. The music can be played directly from the computer. As a result it is not necessary to change CDs frequently and the CDs have a longer life because of this as well. Here again the dampener is the disk space. Audio CDs use a file format which is a very large format. As a result you cannot store too many files ripped off CDs in a personal computer. The answer in both cases is to store the files as mp3 files.