# Mini CD

> CD with a smaller diameter and one third the storage capacity of a standard 120 mm disc

**Wikidata**: [Q1325794](https://www.wikidata.org/wiki/Q1325794)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Mini_CD)  
**Source**: https://4ort.xyz/entity/mini-cd

## Summary
A Mini CD is a compact disc with a smaller 80 mm diameter that holds one-third the storage capacity of a standard 120 mm CD. It was developed as a more portable alternative to full-size CDs while maintaining compatibility with most CD players. The format became popular for CD singles and promotional releases in the 1980s and 1990s.

## Key Facts
- Mini CDs have a diameter of 80 mm compared to 120 mm for standard CDs
- Storage capacity is approximately 180 MB versus 650-700 MB for standard CDs
- The format was introduced in 1979 as part of the compact disc family
- Also known as 3" CD, pocket CD, MiniCD, and 8cm CD
- Thickness remains the same as standard CDs at 1.2 mm
- Compatible with most CD players designed for standard CDs
- Popular for CD singles, promotional releases, and business card CDs
- Has 16 Wikipedia sitelinks across multiple languages
- Described as an audio release format and subclass of compact disc

## FAQs
### Q: What is the storage capacity of a Mini CD?
A: A Mini CD typically holds about 180 MB of data, which is one-third the capacity of a standard 120 mm CD that holds 650-700 MB.

### Q: Are Mini CDs compatible with standard CD players?
A: Yes, Mini CDs are generally compatible with most CD players designed for standard CDs, though some very early players may have issues.

### Q: What were Mini CDs commonly used for?
A: Mini CDs were most commonly used for CD singles, promotional releases, and business card CDs, offering a more compact format for shorter audio content.

## Why It Matters
The Mini CD represented an important evolution in optical disc technology by offering a more portable and cost-effective format for shorter audio content. Its introduction addressed the need for a smaller physical format that could still leverage existing CD player infrastructure, making it ideal for single releases and promotional materials. The format helped bridge the gap between the full-sized CD and emerging digital formats, providing artists and labels with a versatile option for distributing music. While ultimately superseded by digital downloads and streaming, the Mini CD played a significant role in the transition period of music distribution and demonstrated the adaptability of optical disc technology to different market needs.

## Notable For
- One-third the storage capacity of standard CDs while maintaining full compatibility
- Popular format for CD singles and promotional releases in the 1980s-1990s
- Maintained standard CD thickness (1.2 mm) despite smaller diameter
- Multiple alternative names including "pocket CD" and "3-inch CD"
- Used for innovative business card CD formats

## Body
### Technical Specifications
Mini CDs maintain the same 1.2 mm thickness as standard CDs while reducing the diameter from 120 mm to 80 mm. This smaller form factor results in approximately one-third the storage capacity, typically around 180 MB compared to 650-700 MB for standard CDs. The format uses the same optical disc technology and data encoding as full-size CDs.

### Development and History
The Mini CD emerged as part of the broader compact disc family, with its development tracing back to 1979 when the CD format was first introduced. The smaller format gained popularity in the 1980s and 1990s as a practical solution for distributing shorter audio content, particularly CD singles.

### Usage and Applications
Mini CDs found their primary use in the music industry for CD singles, allowing artists to release individual tracks without the cost of full-sized CDs. The format also became popular for promotional releases, where the smaller size made distribution more economical. Additionally, the format was adapted for business card CDs, which could include contact information and promotional materials.

### Compatibility and Standards
Despite the smaller size, Mini CDs maintain compatibility with most CD players designed for standard discs. The format adheres to the same technical standards as full-size CDs, using identical data encoding and error correction methods. This compatibility was a key factor in the format's adoption and success.

### Cultural Impact
The Mini CD represented a transitional format in the evolution of music distribution, bridging the gap between physical media and digital formats. Its popularity in the 1990s coincided with the peak of CD singles as a commercial format, and it helped establish new patterns for music release strategies that would influence later digital distribution models.

## References

1. Freebase Data Dumps. 2013
2. [Source](https://www.cdrom2go.com/cd-dvd-blu-ray-disc-dimensions)