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Extract SACD ISO to FLAC [Mac Windows Definitive Guide]

Convert SACD ISO to FLAC with AuI ConverteR
DSD or SACD ISO to FLAC conversion is intended to adapt of music file format for audiophile equipment. The converter software changes sample rate, select stereo/multichannel album from disc image, or downmix 5.1 to 2.0 for extracted tracks. After it, you can enjoy musical pieces on digital audio player, mobile phone, your computer with DAC, and other devices. Additionally, you can place more songs in limited space of hard disk. Read the step-by-step online guide on how to rip sacd .iso file to FLAC with premium audio quality of professional recording studio.

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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How to extract (rip) SACD ISO to FLAC

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

  1. Start conversion software AuI ConverteR 48x44.

  2. Open SACD .iso file. *
    You can extract individual track(s)...
  3. Select the target FLAC format in the main window, Format panel. Alternatively, you can select WAV, Apple Lossless or other qualitative PCM format.
    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. Or you can downmix multichannel to stereo. *
    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

    Learn details about troubleshooting...
    Study 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 to your liking. Read details...
WARNING: DVD-audio/video, Blu-Ray, DVD/BluRay/CD ISO are NOT supported.

Watch and share: How to convert ISO file to FLAC
video: convert .iso to .flac


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. In batch conversion FREE version mutes 2 seconds in the output middle for second and the subsequent files.
Free version has processing sound quality identical commercial editions.
* if it's available in purchased software configuration. Check out the extractor software configurations.
At first time conversion or after codec reset, auto downloading of the codec will be requested. View details about first-time conversion below.



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Why ISO to FLAC conversion is need?

Is it possible to rip SACD? Yes. 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 DSD to FLAC or WAV or AIFF 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.


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Sound quality. How it's achieved?

Conversion of ISO files to FLAC is sigma-delta (aka DSD) demodulation. It also may be called as Super audio CD decoder. The 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.

See details...

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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Check software configurations to convert SACD ISO to FLAC

Converter SACD ISO to FLAC. Options


AuI ConverteR is a configurable software that lets you choose the features you need and pay only for them. A "module" is a part of AuI ConverteR's functionality that you can buy separately. You can buy new modules later to enhance your Modula-R major version (details). Each module is a license key that you get by email and enter in the software. A "major update" is a change in the first version number of the software version (for example, from 10.x to 11.x) and it is not free. However, your license is unlimited-time, which means you can use the software as long as you want without any subscription fees. (details)

IMPORTANT: The Free version of AuI ConverteR does not work with any modules. You need to buy a CORE module first, and then you can add other modules that are compatible with it (details). If you buy all the modules, you get the same features as the PROduce-RD version, which is a complete and cheaper package. You cannot exchange your Modula-R license for a PROduce-RD license.

* 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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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 SACD ISO to FLAC
SACD ripping Convert SACD and audio What is SACD ISO Play audio DSF files DFF files Sound quality



What is the difference between SACD and FLAC?

SACD (Super Audio CD) is optical disk containing DSD stream. FLAC file contains PCM stream.


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?

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.

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 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...



F.A.Q. convert audio


How do you convert to SACD?

To convert/write audio to SACD optical disk, special equipment, authoring software, and license are 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...


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 DSF to FLAC?

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


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:


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 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 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 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...


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.



F.A.Q. DSF files


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...



F.A.Q. DFF files


How do I convert a DFF file?

You can convert DFF file to:



F.A.Q. sound quality


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:


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 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 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.


Is FLAC lossless?

Yes. FLAC is a lossless audio format.



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