A jewel case is a type of rigid, clear plastic case specifically designed to protect compact discs (CDs) and DVDs. It is one of the most common forms of packaging for optical media.
Design and Specifications
Structure
The standard jewel case consists of three primary components:
- Front Cover: The transparent plastic window that allows visibility of the disc label and any inserted cover art.
- Back Cover: The opaque or clear back section that usually holds the disc tray.
- Disc Tray: The middle part which securely holds the disc in place.
Dimensions
- External Dimensions: The case typically measures 142 mm × 125 mm × 10 mm.
- Paper Insert: The paper insert (cover art) for the face of a jewel case measures 120 mm (4.7 inches) square.
Materials
Jewel cases are made of durable, clear polystyrene plastic. This material provides both rigidity and protection for the media enclosed within.
Types and Variations
Standard Jewel Case
The most common form, offering a simple yet effective way to protect a CD or DVD along with cover art and liner notes.
Slimline Jewel Case
A thinner variant of the standard jewel case, often used for promotional CDs or software distribution. Its main characteristic is being half the thickness (approximately 5 mm) of the standard case.
Multi-Disc Jewel Case
These variants are designed to hold multiple discs (usually 2-4), with additional trays or modified internal structure.
Historical Context
Jewel cases became the standard for commercial CD packaging shortly after the introduction of the compact disc in the early 1980s by Philips and Sony. The name “jewel case” itself is believed to have originated from the idea that the clear, protective case showcased the disc like a jewel in a display case.
Applicability
Usage in Media Packaging
Jewel cases are predominantly used in the music industry, software distribution, and for the packaging of various types of media content on CDs and DVDs.
Preservation of Media
They effectively protect discs from physical damage such as scratching, dust, and exposure to UV light, making them a preferred choice for physical media preservation.
Related Terms
- Digipak: A type of packaging for CDs and DVDs that consists of a plastic tray glued inside a cardboard sleeve, providing an eco-friendly alternative to traditional jewel cases.
- Clamshell Case: A type of case with a hinged cover that snaps shut, often used for packaging smaller electronics or media products.
- Sleeves: A simpler form of packaging consisting of a thin envelope, often used for budget distribution of CDs or DVDs.
FAQs
Are jewel cases recyclable?
Can I replace a broken jewel case?
What is the best way to clean a jewel case?
Summary
The jewel case remains a staple in the world of optical media due to its ability to protect CDs and DVDs effectively while providing an attractive display for cover art and liner notes. Its simple design and versatility have sustained its relevance for decades, from the early days of compact discs to today’s media-rich environment. Whether for music, software, or data storage, the jewel case continues to be a preferred choice for media packaging and protection.
References
- “Compact Disc.” Wikipedia, The Free Encyclopedia. https://en.wikipedia.org/wiki/Compact_disc
- “CD & DVD Packaging Options.” Disc Makers. https://www.discmakers.com/AVL/CDPackaging/
- “Understanding Retail Packaging Options.” The Balance Small Business. https://www.thebalancesmb.com/types-of-product-packaging-2890268
This entry provides a comprehensive overview of the jewel case, its design, variations, historical context, applications, and related terms, making it an invaluable reference for anyone interested in media packaging and preservation.
