DSF vs W64
A detailed comparison of DSD Stream File and Sony Wave64 — file size, quality, compatibility, and which format to choose for your workflow.
DSD Stream File
Audio FilesDSF (DSD Stream File) stores Direct Stream Digital audio data with metadata support. DSD uses single-bit sigma-delta modulation at very high sample rates (2.8 MHz and above), providing extremely high resolution audio favored by audiophiles.
About DSF filesSony Wave64
Audio FilesWave64 (W64) is an extension of the WAV format developed by Sony that breaks the 4 GB file size limit of standard WAV by using 64-bit chunk sizes. It is used in professional audio production for very long or multi-channel recordings.
About W64 filesStrengths Comparison
DSF Strengths
- Preserves SACD audio bit-exact.
- Appeals to audiophiles who prefer DSD-encoded content.
- Sony-supported and documented.
- High-end DACs natively decode DSD without PCM conversion.
W64 Strengths
- Unlimited file size (64-bit chunks).
- Professional DAW compatibility.
- Bit-exact lossless.
Limitations
DSF Limitations
- Enormous file sizes (2-5 GB per album).
- Specialized hardware required for native playback.
- Blind listening tests struggle to distinguish from well-produced 24-bit PCM.
- Niche — overwhelmingly targets the audiophile market.
W64 Limitations
- Less universal than WAV.
- Niche — only matters for very large sessions.
- Competes with RF64.
Technical Specifications
| Specification | DSF | W64 |
|---|---|---|
| MIME type | audio/x-dsf | audio/x-w64 |
| Extension | .dsf | .w64 |
| Sample rate | 2.8224 MHz (DSD64); 5.6448 (DSD128); 11.2896 (DSD256) | — |
| Bit depth | 1 bit (Sigma-Delta modulation) | — |
| Container | Sony proprietary (similar to DFF) | — |
| Max size | — | 2^64 bytes |
| Relative | — | RF64 (EBU 64-bit WAV) |
Typical File Sizes
DSF
- Single song (DSD64) 150-300 MB
- Full album (DSD64) 2-4 GB
- Single song (DSD256) 600 MB - 1.2 GB
W64
- 1-hour 24-bit 48 kHz mono ~620 MB
- 48-hour field recording ~30 GB
Ready to convert?
Convert between DSF and W64 online, free, and without installing anything. Encrypted upload, automatic deletion after 60 minutes.
Frequently Asked Questions
DSF (DSD Stream File) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
DSF (DSD Stream File) is an audio formatoo de arquivo used to store sound recordings — music, voice, podcasts, sound effects. The formato defines how the audio samples are comprimido (or stored raw), what bitrates are suportado, e how metadata como title, artist, album, e cover art is embedded. It is part of the audio arquivos family.
VLC, foobar2000, and the default media players on Windows and macOS handle DSF natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
VLC, foobar2000, e the default media players no Windows e macOS handle DSF natively. On mobile, iOS Music e Android media apps vary in their support — popular formatoos funcionar everywhere; niche ones may need a dedicated app. If playback fails em um device, convertendo to MP3 ou AAC Geralmente solves it.
Upload the DSF to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
DSF can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.