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Extract SACD ISO to FLAC [Mac Windows Definitive Guide]

DSD ISO, SACD ISO to FLAC conversion is intended to adapt of playback format, sample rate, channel number of music files for audiophile equipment, portable players or mobile phones. Read step-by-step on how to rip sacd .iso file to FLAC and about sound-quality comparison.

Author: Yuri Korzunov,
Audiophile Inventory's developer with 25+ year experience in digital signal processing,
author of the articles that make audio easy for beginners



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SACD ISO to FLAC extracting (ripping)

With AuI ConverteR you can easy rip .iso file from DSD to PCM files. To convert SACD ISO to FLAC file in high sound quality follow these steps:

  1. Start conversion software ♫ AuI ConverteR 48x44.

  2. Open SACD .iso file. *
  3. Select the target FLAC format in the main window, Format panel.
    Set output format
  4. Select sample rate.
  5. Select bit depth.
  6. When the target bit depth is 16 bit, dithering ON is recommended.
    (for higher resolutions Dither button will be ignored).
  7. Choose what file type (stereo or multichannel) will extracted.
    Stereo or multichannel iso extraction
  8. Select the target directory. (watch the video, and read the manual)
  9. In the main window > Album art tab, assign album artwork's file. **
    Album artwork panel
  10. Push the Start button.
  11. Wait until the end of conversion.
    (Converted (ripped) stuff is placed in the target directory)
  12. If you got audible artifacts and distortions, it is rather an overload issue.
    In Settings > General tab > "Output attenuator" field, set "-3 dB" or "-6 dB":
    Attenuator for ISO extraction

    or use automatical audio level normalization** to achieve target loudness or maximum using of dynamic range,
    or set manual gain level correction**.
    normalize audio

    Read how to extract individual track(s)...
    Read more about troubleshooting...
    Read more how to rip SACD to ISO...


Default settings of AuI ConverteR provide the best sound quality of ISO to PCM conversion by the program developer's opinion. But you can change the settings by your taste. Read more...

WARNING: DVD-audio/video, Blu-Ray, DVD/BluRay/CD ISO are NOT supported.
For Modula-R version, SACD ISO, DSF, DFF are supported in proper configurations.
For ISO tracks, DSF, DFF longer than 3 minutes, FREE edition mutes 2-second silence in the output middle and has other restrictions
Free version has processing sound quality identical commercial editions.

* at first time conversion or after codec reset, auto downloading of the codec will be requested. View details about first-time conversion below.

** if available in purchased software configuration. Check out the extractor software configurations...

*** All prices on this page are in U.S. dollars without V.A.T. and other applicable taxes and fees. The prices are recommended. Information on this page is not a public offer.







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AuI ConverteR has several price/functionality options that allow saving your budget for the required functionality. You can expand Modula-R abilities later by purchasing new modules. Unlimited-time license, major updates (... 10.x > 11.x > 12.x > ... versions) are paid.

WARNING: Modula-R modules (parts of AuI ConverteR’s functionality) are NOT compatible with Free version.
ADD-ON modules work with certain CORE modules only (see details).
The module is license key received in order email. To activate module functionality, enter its key in Modula-R executable.
All "Modula-R" modules together have "PROduce-RD"'s abilities.
Full-featured "PROduce-RD" version is like a discount on price of full module kit of "Modula-R" version.

To expand functionality, module(s) (compatible with purchased major version number) may be ordered separately.
Modula-R license cannot be replaced with PROduce-RD.

* All prices on this page are in U.S. dollars without V.A.T. and other applicable taxes and fees. The prices are recommended. Information on this page is not a public offer.




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Why ISO to FLAC conversion is need?

SACD optical disk requires special drive. It cannot be played back on a computer. To solving the issue, Super Audio CD may be ripped to SACD ISO file.

.iso file contains 1-bit DSD audio, that requires especial digital-to-audio converter (DAC) and software to listening.

If your DAC doesn't support this format, you can convert ISO to WAV or FLAC audio files. These file types are native for this digital-to-analog converter and often consumes lesser place, because DSD files has 1-bit resolution with high sampling rate.

Also, SACD ISO files may contain 2 album variants: stereo and surround (multichannel). For stereo portable player or mobile phone it is too excessive for limited space of hard disk or SD-memory stick.

And, you can extract only stereo or multichannel album variant for listening in the favorite or available option.


Watch and share: How to convert SACD ISO to FLAC files



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Sound quality issues

Converting ISO files to FLAC is sigma-delta (aka DSD) demodulation. DSD demodulator is a low-frequency filter.

There is no strict standard for the filter to achieve the proper result. Practically, in a SACD ISO extractor we can vary the filtering band to achieve the best result on our equipment. Read more...

Direct Stream Digital signal is like a water (music) with oil (DSD high-frequency noise).

Oil pops up. The water is sinking. Both fractions are almost separate.

We can remove the upper fraction - oil. It's like low-frequency filter that removes high-frequency noise.

After the oil removing, only water (music) stays.

Oil-separating quality (noise filtering) defines how the water is pure (playback sound quality).

When you convert ISO to FLAC, AuI ConverteR provides 3 filter bands: optionally from 20 kHz to 100 kHz. Bandwidth may be limited depending on input or output sample rates. Output sample rate limit target signal band.

AuI ConverteR vs a converter software: DSD64 to PCM 44.1 kHz aliases
AuI ConverteR vs a converter software: DSD64 to PCM 44.1 kHz


In the ideal case, repeatable lines with lower brightness should not be visible. These lines show audible distortions, that correlate with the original signal.

The sound quality in the first approach:

  • high conversion quality is like an image on good photo paper;
  • low converter quality may be imagined  as a drawing on a paper with some defects on its surface.

Bit depth and sample rate of converted files may provide different playback qualities to your system. It is bound with different playback modes. The mode is combination "bit depth + sample rate".

In general, you can convert SACD ISO to FLAC file in the maximum sample rate and bit depth of your DAC. But it doesn't guarantee, that you get the best result. Read details about music conversion and sound quality issues.

DSD to PCM format extraction applies the downsampling. Downsampling processing is based on filtering with various settings.

At Settings > General tab > set Filter mode:

  • "Optimized resampling filter" removes frequency range upper 20 kHz (ultrasound eliminating so that remove intermodulation distortions);
  • "Non-Optimized resampling filter" suppresses signal upper 20...24 kHz (defined by input/output sample rates). It means ultrasound elimination. So, it removes intermodulation distortions that are caused by wideband signals;
  • "Non-Optimized wide resampling filter" suppresses band upper 20...100 kHz (defined by input/output sample rates). It provides a wider band of a musical signal.
  • "G5 Optimized resampling filter" is the same as "Optimized resampling filter", but with a shorter ringing length.

At some equipment and/or software, "Non-Optimized..." modes can cause audible noise. You can watch it in this video.

Watch and share: Removing noise from high-resolution file

Therefore "Optimized..." mode is recommended as the first choice. However, you can prefer other settings.

Use minimum phase filter switch checked/unchecked minimum/linear phase filtering, respectively, in "Optimized..." mode. Other modes are implemented as the linear filter only.


Let's look at the oil (noise) in water (music) that was mentioned above.

The filter choice defines the kind of oil and water separation.

All filters provide high sound quality, but they give options according to your equipment and/or taste.


Dithering is applied to extracting 16-bit output resolution only. If the target resolution is 24 bits and more (including float point), the Dither button is ignored.



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Tips and tricks

In the Settings, General tab:

  • FLAC compressing slider: set several compression levels. As rule, slider position altering gives minimum effect. The central slider position is recommended. The level doesn't impact sound quality.
  • Filter mode list: "Optimized resampling filter" is recommended. "Non-optimized ..." and "Non-optimized wide..." may cause noise and distortions.
    "Optimized G5" is the most recommended filter. However, it works significantly slower than previous ones.
  • Use minimum phase filter... switch unchecking is recommended.
  • Dithering mask depth... slider recommended set to the most left position. If you convert to 16 bit, in the main window of AuI ConverteR, compare sounding with Dither button ON and OFF.

However, your individual choices may be other, than recommended here.

Check more about  sound quality issues >



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Conversion tweaks

Check AuI ConverteR 48x44 configurations, that ISOs to FLACs capable...

To check sound quality download FREE version.

Read below about conversion sound quality issues.

  1. Launch the converting tool.
  2. Open Settings, CD ripper/ISO tab (see below).
  3. Select stereo/multichannel target stuff - check/uncheck Force read stereo track switch, respectively
    (read details in Sound quality issues part of this article).
  4. Skip pause before first track: check Skip pause for the first ISO track switch.
  5. Skip pause between tracks: check Skip pause for all tracks switch
    Pauses between tracks may contain clicks/pops.
  6. Click OK button
  7. To convert live concerts, operas and same albums: at the software's main window, Parameters tab, check True gapless mode switch **


Read articles about SACD ISO and FLAC musical files:



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Frequently Asked Questions

F.A.Q. Convert ISO [SACD ISO] to FLAC
SACD ripping Convert SACD and audio What is SACD ISO Play audio DSF files DFF files Sound quality

F.A.Q. SACD ripping


Can I rip SACD to FLAC?

SACD [optical disk] ripping is applied on special hardware tools with sacd_excract utility. Recommended target format is SACD ISO.

When you rip SACD optical disk to audio files (.dsf, .dff), long path/name of an extracted file, non-Latin symbols (in metadata) may cause an error in the file creation.

DFF file doesn't support metadata standard way.

After the Super Audio CD's ripping, you can convert:

Also, read the definitive manual...


Can you rip SACD audio?

You can rip SACD audio optical disk to .iso, .dsf, .dff files.

SACD ISO file may be extracted to DSF/DFF or FLAC.



How do you rip SACD?

Read how to rip SACD optical disk to DSD files here...



Can I rip SACD audio?

There is no audioconverter that can rip SACD optical disk from computer drive. Super audio CD ripping may be applied via especial hardware and software.

Read information about SACD ripping...


Can I rip an SACD?

SACD ripping is possible with special hardware and software.



How do I read a SACD on my computer?

You can't read SACD optical disc on a computer. Only, some SONY VAIO models can do it with theis own software. Super Audio CD can be ripped...


Can I rip SACD to FLAC?

You can rip SACD with special hardware and software to DSF/DFF/SACD ISO. If your converter software uses sacd_extract utility to extract ISO and supports DSD to FLAC conversion, theoretically, the converting program can be tuned for ripping directly to FLAC.




F.A.Q. convert audio


How do you convert to SACD?

To convert/write audio to SACD optical disk, special equipment is required.


How do you convert SACD to DSD?

SACD optical disk may be ripped to SACD ISO or DSF/DFF...

If SACD ISO is ripped to DSF/DFF, some issues may be there. Also, clicks and pops are possible.

To solve some of these issues, you can rip SACD optical disk to .iso file and convert the SACD ISO to DSD...



How do I extract music from SACD ISO?

You can extract music from SACD ISO to .wav, .flac, .mp3 or .dsf, .dff audio files.


Can you convert an ISO file?

You can covert SACD ISO file to .dsf, .dff and .flac, .wav, .mp3 files.


How rip SACD ISO to FLAC?

Ripping (conversion) of SACD ISO image to FLAC file may be done this way...


Can SACD be copied?

SACD optical disc cannot be copied via an ordinary computer disk drive. Also, SACD should be created with special equipment.

As the author knows, some Sony Vaio laptops are capable to playback SACD. But it can't be stored as DSD files.

There are several ways to copy SACD to DSD files...


Is it possible to rip SACD?

SACD optical disk may be ripped technically. Read details...


How do I rip SACD to my computer?

To rip SACD optical disk to a computer, special software and hardware are needed.

Usual optical disk drive is not capable of this work..

Read how to rip SACD optical disk...

Read how to rip SACD ISO...


Can I convert ISO file?

You can convert ISO file to FLAC, WAV, mp3,... or DSD (.dsf or .dff).

DVD/BlueRay/CD ISO files are not supported by AuI ConverteR.


How do I convert ISO to FLAC?

Read the guide on how you can convert .iso file to .flac...


How do I extract audio from an ISO file?

Read the manual on how you can extract from SACD ISO file:


How do I extract tracks from SACD?

To rip SACD optical disk, special hardware and software are needed.

To extract separate tracks from SACD ISO file, you can select the tracks before extraction.


What is SACD ISO extractor?

SACD ISO extractor is software to convert SACD ISO file to separate audio files.


How do you convert SACD to DSD?

SACD optical disk may be ripped with special equipment...

The ripping result is either SACD ISO or DSF or DFF (DSD files). However, ripping to ISO is more recommended due to long path and other issues when the target file is DSF/DFF. Ripped SACD ISO may be converted to DSF or DFF.


How do I convert ISO to DSD?

Read how to convert ISO to DSD files...


Can I convert SACD to FLAC?

Optical SACD disk may be ripped to SACD ISO file. The file may be converted to FLAC.


How do I convert files to FLAC?

Read guides on how you can convert files to FLAC:


Can you convert DSD to FLAC?

Read manuals on how to convert DSD audio:


How do I convert ISO to SACD to MP3?

SACD ISO cannot be converted to Super Audio CD optical disk without special hardware and software.

Read how to convert SACD ISO to mp3...


How do I convert music files to FLAC?

Read how to convert:


Can you upscale MP3 to FLAC?

Read how to convert mp3 to FLAC...


How do I use SACD extract?

sacd_extract software is a command line utility. Its using requires some additional skills.

The utility is used as a standard codec for SACD ISO extracting in different software.

AuI ConverteR provides graphical user interface for sacd_extract codec and additional processing that allows fixing some extracting issues.

How to convert (manuals):

Also, read "Definitive SACD ISO Extracting Guide..."


How do you play SACD on Foobar?

In common case, SACD ISO optical disk may not be played on computer directly.

It should be ripped to SACD ISO...

Read how to play SACD ISO on foobar 2000...


Does Foobar play DSD?

Yes. Foobar can play DSD after installing additional plugins.



How do I convert an ISO file to MP3?

You can convert SACD ISO file to mp3, using the guide...


Can iTunes convert FLAC?

As far as the author knows, iTunes doesn't support FLAC. You can convert FLAC or other files to ALAC...



F.A.Q. What is SACD ISO


What is SACD ISO?

SACD ISO is a file, that contains DSD (Direct Stream Digital) audio and metadata from SACD optical disk.

Read about DSD files...


How do I open an ISO file with SACD?

SACD ISO is a file that may be:



F.A.Q. Play audio


Can I play SACD on my computer?

In general, no. However, some SONY VAIO computers have SACD abilities.


How do I play DSF files on Foobar?

How to play DSF and SACD ISO on foobar2000 read DSD guide...


How do I open a SACD ISO file?

  1. Read SACD ISO playback [foobar2000] guide...
  2. Look at DSD audio player list...
  3. Look at audio converter list...
  4. How to convert ISO to FLAC...
  5. How to convert ISO to DSF...



F.A.Q. DSF files


Can Audirvana play ISO files?

Audirvana is capable to play SACD ISO files[*].

Check out SACD ISO extraction [definitive manual]...


Can VLC play DSF?

Still no information, that author knows, about the implementation of DSF file playback on VLC.


Which is better DSD or FLAC?

We should discuss: which is better DSD or PCM (FLAC is included). In theory, DSD system desing is simpler. In the real world, there are subtle details. So, there is no single answer to the question. System design makes sound.

Read more:


What is DSF format?

DSF format is a kind of audiophile music file, that contains DSD audio data and information about a song, including artworks.


How do I open a DSF file?

Read how to open DSF file...


How do I convert DSF to FLAC?

You can use audio conversion software to convert DSF to FLAC...



F.A.Q. DFF files


How do I convert a DFF file?

You can convert DFF file to:



F.A.Q. sound quality


Is SACD better than FLAC?

SACD is DSD format. FLAC is PCM format. There is no single common answer. Read about DSD vs FLAC comparison...


Is DSD better than FLAC?

DSD and PCM (including FLAC) formats can bring the same sound advantages. Actually, played recording and audio equipment makes result.



Is FLAC better than MP3?

FLAC is a lossless format. Technically it's better mp3.



Is SACD better than CD?

SACD is one of DSD formats. DSD allows reducing audio processing number from recording microphone to loudspeakers.

Theoretically, lesser items lesser distortions. But, the actual result is depending on the design of the given audio system.

Read more:


Is FLAC better than SACD?

FLAC is PCM format. SACD is DSD format. Both formats has balance between advantages and disadvantages for each implementation. It defines sound quality for each given case. Read more...


Is WAV or FLAC better?

Commonly, FLAC is more recommended because no sound quality difference, but the lesser size and wider device compatibility (by metadata) of FLAC is there.

However, if you want to use high resolutions above 352/384 kHz, WAV allows it.


What bitrate is FLAC?

FLAC bitrate may be estimated by formula: Bitrate (kbps) = SampleRate_Hz * Channels * BitDepth_bit * 0.0006

Example for 44.1 kHz / 16 bit / 2 channels: 846.72 kbps = 44100 Hz * 2 channels * 16 bit * 0.0006


Does AuI ConverteR contain its own SACD ISO extract codec?

Third-party sacd_extract codec or other utility, compatible with AuI ConverteR, connected as command-line utility, decodes SACD ISO for further processing with AuI ConverteR. Read more about codecs...


Is FLAC better than DSD?

What is better FLAC or DSD is a complex issue. It depending many factors: given recording, sound equipment, music software.

Read about it...


Which is better WAV or FLAC?

FLAC is recommended for most cases. If you need to use sampling rates above 384 kHz and bit depth above 32 bit or float point, use WAV.

Read details...


Is FLAC lossless?

Yes. FLAC is a lossless audio format.


Is FLAC better than DSD?

There is no single answer. Combination of equipment, its mode, recording lead to better sound.

Read details...


Also, read other SACD extracting F.A.Q. >



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Additional information

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