# Phase-change Dual

> Rewritable optical disc standard

**Wikidata**: [Q641045](https://www.wikidata.org/wiki/Q641045)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Phase-change_Dual)  
**Source**: https://4ort.xyz/entity/phase-change-dual

## Summary
Phase-change Dual is a rewritable optical disc standard, classified as an optical disc. It is part of the broader category of flat, circular discs used primarily for physical data distribution and long-term archival.

## Key Facts
- **Instance of**: Optical disc, a flat and usually circular disc that encodes binary data.
- **Rewritable standard**: Designed for data that can be overwritten multiple times.
- **Primary use**: Physical data distribution and long-term archival storage.
- **Wikidata ID**: Q15241312 (from Freebase ID /m/05r72c).
- **Different from**: Democratic Party – demokraci.pl (as per Polish Wikipedia reference).
- **Wikipedia presence**: Available in multiple languages, including English, German, Spanish, and Japanese.
- **Commons category**: Phase-change Dual (for media files).
- **Sitelink count**: 10 (indicating limited but existing online references).

## FAQs
### Q: What is the primary use of Phase-change Dual discs?
A: Phase-change Dual discs are primarily used for physical data distribution and long-term archival storage.

### Q: Are Phase-change Dual discs rewritable?
A: Yes, Phase-change Dual is a rewritable optical disc standard, meaning data can be overwritten.

### Q: In which languages is information about Phase-change Dual available?
A: Information is available in multiple languages, including English, German, Spanish, Japanese, and Polish.

### Q: What distinguishes Phase-change Dual from other optical disc standards?
A: While specific technical distinctions are not detailed in the source, it is classified as an optical disc and differs from entities like the Democratic Party – demokraci.pl.

### Q: Where can I find media related to Phase-change Dual?
A: Media files are categorized under "Phase-change Dual" in Wikimedia Commons.

## Why It Matters
Phase-change Dual plays a niche role in the field of optical storage by providing a rewritable standard for physical data distribution and archival purposes. As part of the broader optical disc classification, it contributes to the long-term preservation of digital information. Its limited but existing online presence (10 sitelinks) suggests it is a recognized but not widely discussed standard. The standard’s rewritable nature makes it useful for scenarios requiring frequent data updates while maintaining physical storage integrity.

## Notable For
- **Rewritable optical standard**: One of the few rewritable disc formats, useful for frequent data updates.
- **Archival focus**: Designed for long-term data storage, ensuring data integrity over time.
- **Multilingual documentation**: Available in multiple languages, indicating broader recognition.
- **Limited but established presence**: 10 sitelinks suggest it is a recognized but not dominant standard.
- **Distinct from political entities**: Unlike the Democratic Party – demokraci.pl, it is a technical standard.

## Body
### Classification
Phase-change Dual is classified as an **optical disc**, a flat and circular medium used for encoding binary data. It is distinct from entities like the Democratic Party – demokraci.pl, as per Polish Wikipedia references.

### Usage
The standard is primarily used for **physical data distribution and long-term archival storage**. Its rewritable nature allows for multiple overwrites, making it suitable for dynamic data storage needs.

### Digital Presence
Phase-change Dual has a **sitelink count of 10**, indicating limited but existing online references. Wikipedia articles are available in multiple languages, including English, German, Spanish, and Japanese.

### Media Resources
Media related to Phase-change Dual is categorized under **"Phase-change Dual"** in Wikimedia Commons, with a gallery labeled "PD."

### Wikidata Integration
The standard is linked to Wikidata under **Q15241312**, with a Freebase ID of **/m/05r72c**, as referenced in a 2013 publication.

## References

1. Freebase Data Dumps. 2013