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FB2 at a glance
FB2
Convert to FB2 when targeting reading environments or libraries that explicitly support FictionBook, especially for prose-heavy works, personal ebook collections, or regional distribution where FB2 remains common.
It is useful when semantic text structure matters more than elaborate layout.
For wider global interoperability, EPUB is usually the safer target.
MQV at a glance
MQV
Convert to or from MQV when migrating recordings off older Sony consumer devices, preserving original camera exports, or normalizing a proprietary Sony library into MP4, MOV, or another easier editing format.
It is primarily a legacy-ingest and archive-recovery format.
Format comparison
| Feature | FB2 | MQV |
|---|---|---|
| File type | Ebook | Video |
| Extensions |
|
|
| MIME type |
|
|
| Compression / quality | reflowable | depends |
| File size characteristics | small | large |
| Compatibility | moderate | moderate |
| Editability | moderate | limited |
| Created year | 2004 | 2007 |
| Inventor | Russian eBook community | Sony |
| Status | active | legacy |
| Primary use cases |
|
|
| Common software |
|
|
| Archival suitability | moderate | moderate |
| Metadata handling | moderate | moderate |
| Delivery profile | strong | strong |
| Workflow fit | reading | delivery |
When to use each format
When to use FB2
- ebook publishing
- reader distribution
- digital libraries
- Structured XML book model.
When to use MQV
- editing
- mastering
- streaming delivery
- QuickTime/ISO BMFF lineage makes the underlying structure parseable by many media tools.
FAQs
Why convert FB2 to MQV?
Convert to or from MQV when migrating recordings off older Sony consumer devices, preserving original camera exports, or normalizing a proprietary Sony library into MP4, MOV, or another easier editing format.
It is primarily a legacy-ingest and archive-recovery format.
What changes when converting FB2 to MQV?
This conversion changes how the format behaves in downstream tools and delivery environments.
Size profile changes from small in FB2 to large in MQV. Quality profile changes from reflowable in FB2 to depends in MQV. Editability profile changes from moderate in FB2 to limited in MQV. Workflow profile changes from reading in FB2 to delivery in MQV.
What should I review after converting FB2 to MQV?
Check the exported file for No public specification or documentation.; Very limited software support outside Sony's own applications.; Largely superseded by Sony's later XAVC and XAVC S recording formats..