DSF file format: what it is and how to use it

DSF stores DSD audio, the 1-bit, 2.8 MHz stream from Super Audio CD, for the audiophile world where PCM is the wrong shape. Learn when to use it and what to choose instead.

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What is a DSF file?

A .dsf file is audio in DSD Stream File, the container Sony and Philips created for Direct Stream Digital, the 1-bit, 2.8224 MHz sigma-delta stream behind Super Audio CD. DSF adds what a raw DSD bitstream lacks: ID3 metadata, album art and track structure. Files are huge and the format is deliberately niche: it exists to carry hi-res audio without converting to PCM.

When should you use DSF?

  • SACD rips and DSD masters: keep the original 1-bit stream unchanged.
  • DSD-native DAC playback: audiophile hardware that decodes DSD directly.
  • Hi-res libraries with tags: the only mainstream container DSD audio gets.

When is another format a better fit?

For nearly everyone, FLAC at hi-res PCM plays everywhere at a fraction of the size. For editing, convert through WAV PCM anyway, since DSD cannot be edited natively. And for streaming or sharing, lossy AAC/MP3 remains the practical shape.

The short version: DSF is the audiophile's vault for DSD audio: right inside that niche, but wrong everywhere outside it.

How to open a DSF file

On Windows

Double-click the file, or open it with Foobar2000.

On macOS

Audirvana opens DSF files on macOS.

In your browser

Open DSF files right in a browser tab or with the dexrr viewer. No install, no upload.

Also opens in

  • Foobar2000
  • Audirvana
  • JRiver Media Center
  • HQPlayer

View or convert DSF files

A quick preview or a new format. No install, no upload.

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DSF technical details

Full name
DSD Stream File
Extensions
.dsf
MIME type
audio/x-dsf
Magic bytes
44 53 44 20 (DSD )
Compression
None (uncompressed)
Developer
Sony / Philips
Specification
dsd-guide.com

DSF questions, answered

How do I open a .dsf file?

foobar2000 (with plugin), JRiver, Audirvana, VLC and FFmpeg-based players read it; stock players usually do not. dexrr plays and converts dsf files in your browser.

Can I convert DSF files online?

Yes, dexrr converts dsf locally in your browser: DSF to FLAC for hi-res PCM or DSF to WAV for editing.

Is DSD better than PCM/FLAC?

It is a different encoding, not objectively better. DSD excels for native playback on supporting DACs; hi-res FLAC is more practical and just as faithful.

Why are DSF files so big?

DSD trades bit depth for an extreme sample rate, and 1 bit × 2.8 MHz per channel adds up fast. Converting to FLAC shrinks them dramatically.

Is the DSF format outdated?

Niche but alive: the audiophile community keeps DSD downloads, and DSF remains its standard container.