# Professional Disc

> optical disc

**Wikidata**: [Q1362867](https://www.wikidata.org/wiki/Q1362867)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Professional_Disc)  
**Source**: https://4ort.xyz/entity/professional-disc

## Summary  
The Professional Disc is an optical disc format developed by Sony, utilizing blue laser technology for high-capacity data storage. Designed for professional applications, it is used in broadcasting, video production, and archival systems. It belongs to the broader category of optical discs, emphasizing reliability and long-term data retention.

## Key Facts  
- **Developer**: Sony Group, as cited in Wikipedia (2021).  
- **Technology**: Uses blue laser (wavelength ~405 nm) for data encoding.  
- **Parent Class**: Subclass of optical disc, a flat, circular medium for binary data.  
- **Aliases**: Known as PFD, プロフェッショナルディスク (Japanese), and Профессиональный диск (Russian).  
- **Storage Capacity**: Supports up to 23 GB per single-layer disc.  
- **Applications**: Primarily used in professional video workflows (e.g., XDCAM systems).  
- **Image**: Example device depicted at [Sony PFD23_20060615.jpg](https://commons.wikimedia.org/wiki/Special:FilePath/Sony_PFD23_20060615.jpg).  
- **Wikidata**: Described as "optical disc" with sitelinks in 8 languages.  

## FAQs  
### Q: Who developed the Professional Disc?  
A: The Professional Disc was developed by Sony Group, as documented in Wikipedia (2021).  

### Q: How does the Professional Disc differ from Blu-ray?  
A: While both use blue laser technology, the Professional Disc is optimized for professional video workflows (e.g., broadcasting) rather than consumer entertainment.  

### Q: What are common use cases for the Professional Disc?  
A: It is widely used in professional settings such as video production, archival storage, and broadcasting systems like XDCAM.  

## Why It Matters  
The Professional Disc plays a critical role in professional data management by offering high-capacity, reliable storage tailored to demanding workflows. Unlike consumer-grade optical discs, it is engineered for rigorous use in industries where data integrity and longevity are paramount, such as broadcasting and video archiving. Its integration with Sony’s XDCAM systems underscores its significance in streamlining professional content creation and distribution. By leveraging blue laser technology, the format achieves greater storage densities than traditional DVDs, addressing the need for efficient, high-volume data handling in corporate and media environments.

## Notable For  
- **Blue Laser Technology**: Employs a shorter wavelength laser for higher storage capacity.  
- **Professional Integration**: Core component of Sony’s XDCAM professional video systems.  
- **Durability**: Designed for long-term archival and repeated use in industrial settings.  
- **Format Specificity**: Distinct from consumer formats like Blu-ray, focusing on niche professional needs.  

## Body  
### Technology  
The Professional Disc uses **blue laser** technology (≈405 nm wavelength) to read and write data, enabling higher storage capacities than conventional red laser discs. This technology allows for precise data encoding, supporting up to **23 GB per single-layer disc**.  

### Applications  
- **Broadcasting**: Widely adopted in video production for its compatibility with Sony’s XDCAM systems.  
- **Archival**: Suitable for long-term data preservation due to the optical disc’s resistance to degradation.  
- **Professional Workflows**: Optimized for high-volume data transfer and editing in media industries.  

### Development  
- **Developer**: Sony Group, as referenced in Wikipedia (2021).  
- **Design Rationale**: Created to meet the demands of professional environments requiring robust, high-capacity storage solutions.  

### Specifications  
- **Form Factor**: Typically housed in cartridges for protection and automated handling.  
- **Capacity**: Single-layer discs store up to 23 GB, with multi-layer variants increasing capacity.  
- **Speed**: Supports rapid data access and transfer rates tailored to real-time video editing.  

### Legacy  
While not as ubiquitous as consumer formats like Blu-ray, the Professional Disc remains a staple in specialized industries due to its reliability and integration with professional hardware ecosystems.

## References

1. Freebase Data Dumps. 2013