They keep the discs organized and stable better than any other arrangement. Avoid storage systems that require loose stacking of jewel cases. One solid hit and many discs can be damaged in the fall. If you do store the discs in a bookshelf or box, place bracing objects around the jewel cases, such as bookends or foam padding. Compact discs do offer many advantages over older musical recording formats, but one should still exercise proper maintenance to keep the discs safe and playable for years to come.
Dust can cause the laser eye to skip, and scratches can cause a loss of audio quality.
Here's the proper way to clean and maintain compact discs. Inc. Pagewise makes no representations about the content published on this site. Pagewise hereby disclaims all warranties and conditions with regard to this information, and user agrees that all such use is at its own risk.