Adoption of 4K by Production and Broadcast industries requires a light-footprint format that can be handled by todays disks and machines.
Sony proposes a Long-GOP H.264 based format for 4K recording, for those who don't need or can't afford RAW capabilities: Sony XAVC
Vendor: Sony Models: PXW-Z100, PMW-300, PMW-400, CineAlta PMW F5 and CineAlta PMW F55 Status: Treasured version 3 detects and previews XAVC recorded by those cameras.
Note that those cameras are also capable of recording in other video formats like Sony RAW or MPEG2 HD422 and also work with ProRes recorders through HDMI and 3G HD-SDI output.

source: Sony
XAVC comes in 3 main flavors:
- XAVC-I (Intra Frame) for highest quality, in MXF files
- XAVC-L (Long GOP) for efficient recording, in MXF files
- XAVC-S, in MP4 files, using Sony A7 or Sony AX cameras
Failure Modes
The causes of failure reported by Sony XAVC users needing to repair files are:- Loss of power during recording. System shutdown
- Device was turned off during recording (clip not finalized)
- Accidental deletion of MXF files
- XQD card has been formatted by accident
- MXF files recovered (through undelete or recovery utilities) are corrupted
- MXF footage doesn't preview in Sony Content Browser
Repairability
Treasured (since version 3) can detect Sony XAVC footage in recovered files (regardless of extension), in cards and in hard disks.
Treasured supports all XAVC flavors:
- 4K (DCI) 4096x2160
- QuadHD (QFHD) 3840x2160
- 2K 2048x1080
- HD 1920x1080
Since 2013 we have successfully repaired Sony XAVC footage by developing specific Repair Kits:
- Repaired Videos have same quality as originally recorded
- Repaired Videos come in same MXF containers as normal footage, and are compatible with production workflow
PRICING
Sony XAVC-I repairs are only available through our 4K and Cinema plans.
Sony XAVC-L repairs are available through our professional plans.