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W64 File Format

Sony Wave64 category

W64 (Sony Wave64) is WAV beyond its 4 GB ceiling — a 64-bit riff on the RIFF container that Sony Vegas and high-resolution field recorders emit for hours-long sessions.

Typical use: Convert W64 recordings to WAV or FLAC for standard editors.

About the W64 format

W64 is Sony's Wave64 — what happens when WAV's 32-bit size fields run out of road. A RIFF variant with 64-bit offsets, it shrugs off the 4 GB ceiling that makes plain WAV choke, which is why long field-recording sessions and Sony Vegas projects land in W64.

Inside, it is the same uncompressed PCM as WAV — ffmpeg hands W64 to WAV, FLAC or MP3 without touching a single sample, so conversion is purely about container compatibility.

Strengths

  • ✓ No 4 GB size ceiling — hours-long recordings
  • ✓ Bit-exact PCM, same as WAV inside
  • ✓ Standard in Sony Vegas workflows

Limitations

  • ✗ Almost nothing outside Sony tools opens it
  • ✗ Uncompressed — very large files
  • ✗ Legacy niche — new tools prefer RF64
Structure
RIFF64 (sony w64 header)
Types / schema
PCM, any bit depth WAV supports
Compatibility
Sony Vegas, ffmpeg, Sound Forge
Best for
Long-duration uncompressed sessions

Convert W64 to…

26 direct directions plus 18 workflows, sorted A–Z; 🔥 marks popular targets.

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Frequently asked questions

What is a W64 file?

W64 (Sony Wave64) is WAV beyond its 4 GB ceiling — a 64-bit riff on the RIFF container that Sony Vegas and high-resolution field recorders emit for hours-long sessions.

How do I convert W64 files online?

Pick a target format from the "Convert W64 to…" list below, drop your file and hit convert. Everything runs in your browser — no install, no upload, no watermark, no limits.

Is it safe to convert W64 files here?

Yes. Every conversion is performed by your own device inside the browser — files never leave for a server, and the page keeps working even offline.

Which formats can W64 convert to?

This page lists all 44 directions across documents, images, audio, video, spreadsheets and archives — each one is its own free converter page.