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Sunday, 15 September 2024 13:25

Transferring music from Sony MiniDiscs

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There are a few ways to recover music from Sony Minidiscs and these will vary between devices:

  • Digital download
    • Digitally without loss.
    • This will be the actual audio file 'as-is' from the disk. (aea)
    • Tracks will be split into individual files.
  • Analogue
    • Output via the 3.5mm jack.
    • This is a universal method.
    • There will be no track data.
  • SPDIF / Optical / Coax
    • Digital with minimal loss
    • There will be no track data.

This article is dedicated towards digitally downloading tracks direct from the Walkman with no sound quality loss.

My Kit

  • Windows 11 Laptop
  • Edge browser (Google Chrome can be used)
  • Zadig
  • Sony Portable Minidisc Recorder MZ-N710 (NET MD Walkman)
  • USB cable (USB A to Mini-B)

My Instructions

This YouTube tutorial covers everything from grabbing tracks using Method 1 to converting the .aea files to a more useful format.

  • Connect device to the computer
    • Using the USB A to Mini-B cable.
  • Install Zadiag
    • Short instructions
      • Connect your MZ-N710 via the USB cable.
      • Download Zadig
      • Run the Zdiag installer
      • Click install
      • Reboot windows
    • GitHub - asivery/webminidisc
      • The Windows USB stack requires a driver to be installed to communicate with any USB device. The bad news is that there are no official Windows 10 drivers for NetMD devices. The good news is that we don't need it! We can just use a generic driver like WinUSB to access the device.
      • You can find installation instruction here, but the easiest way to install is to use Zadig.
  • In Edge
    • Open https://web.minidisc.wiki/
      • This is "Web MiniDisc Pro" and is a fork of the original but can also download tracks digitally.
    • Click connect
    • Select Netman MD
  • Safety
    • Make sure all your discs have write protect enabled to protect you from mistakes.
  • Insert your disc
    • Simply put your first disc into the MZ-N710
  • Download the tracks
    • Method 1 (use this)
      • Click on the 3 dots and select Enable Homebrew Mode Ripping in Main UI
      • Select all of the tracks you want
        • Clicking the top track, hold shit and then select the last track will select them all.
      • Click "Download"
        • We don't want to convert them here, we want the RAW data.
      • The track(s) will now download as .aea files labelled with their track number and name (if present).
    • Method 2 (old)
      • Enter Homebrew Mode
        • Click on the 3 dots and select Enter Homebrew Mode
      • Homebrew Mode explained
        • See: Homebrew mode [MiniDisc Wiki]
        • You will be now present with a some tables representing Tracks and the TOC
        • The "Track Junction Map" has one track per sector thing
        • Track 0 is not a track, it possibly is the TOC.
        • You can only download one track at a time.
        • Not all tracks are named
        • The unit must be power cycled between each disk (i think) to clear the TOC which also happens when you swap the disc.
        • If you press the Shift key the track names should be displayed but I never got this to work, maybe my tracks did not haven names on them.
      • Download the track
        • Click on a sector in "Track Junction Map"
        • Click on the download icon.
        • The track will now download as an .aea file labelled with their track number and name (if present).
  • Swapping Disc
    • Stop the disk spinning before ejecting
      • On my MZ-N710 if I hold the CANCEL/CHG button this will stop the disc spinning and allow you to swap the disc without restarting "Web MiniDisc Pro" but this does not always work.
    • You might need to restart "Web MiniDisc Pro".
    • Repeat the download method you choose.

Notes

  • General
  • Web MiniDisc / Web MiniDisc Pro
    • GitHub - asivery/webminidisc:
      • Upload your Music to NetMD and HiMD MiniDisc devices thanks to WebUSB and WASM
      • Differences between Web Minidisc and Web Minidisc Pro
      • Web MiniDisc Pro was forked from the original Web MiniDisc to provide a more advanced workflow for interacting with NetMD devices.
      • https://web.minidisc.wiki/is the new webapp. Web MiniDisc Pro = Brings NetMD Devices to the Web
    • Web MiniDisc Pro - Brings NetMD Devices to the Web
      • Bring back to life your old NetMD MiniDisc player. Upload music to MiniDisc from the Browser.
      • the new version of the webapp.
      • Web MiniDisc Pro - It is a complete replacement for Sony's SonicStage and Simple Burner software. It is considered the flagship NetMD software project.
    • Web MiniDisc - Brings NetMD Devices to the Web
      • Bring back to life your old NetMD MiniDisc player. Upload music to MiniDisc from the Browser.
      • This is the original version of the webapp.
    • The Web MiniDisc Application - Use your old NetMD device in the browser - Get control of your MiniDisc device thanks to WebUSB and WASM
      • Some of the last MiniDisc players, branded as NetMD units, were equipped with a USB port that allowed for recording music onto the device by using the infamously SonicStage software (Windows only, of course). When Sony abandoned the MiniDisc, that software was left unmaintained and, nowadays, it can’t run outside virtual machines or without using dangerously unsigned drivers.
      • I’ve been lucky enough to find my old MZ-N710
    • The Web MiniDisc Application - YouTube | Stefano Brilli - A short demo of how the Web MiniDisc application works.The GitHub project also contains a few instructions to make the app work fine if you're on Windows or Linux.
    • Web Minidisc Update: ToC Cloning and ATRAC download via USB on Type-S Sony NetMD portables | Reddit
      • I'm very happy to announce a new version of Web Minidisc Pro. It's now possible to transfer tracks via USB back to the computer from Sony Type-S portables.
      • To enable this new functionality, you must check the "Factory Mode Ripping In Main UI" switch in the ellipsis menu.
      • After enabling that functionality, the 'Record' button gets replaced by the 'Download' button. If a warning shows up, saying that the current version is not supported, please use the full factory mode to download the RAM and ROM, then contact me.
      • It can definitely rewrite the TOC of an errored disc, but if the disc itself is damaged, the data just won't persist, so it will go back to its old, errored self.
        • Has instructions on fixing a disc's TOC
      • Worked with my MZ-N710 today
      • You can convert them in vlc media player if you need to, under media /convert. Vlc also does batch conversion as well.
      • AEA files are supported by VLC you can convert them/batch convert them directly from vlc media player under Media/convert/save. (to mp3 should you want to).
      • It won't be possible with the MDS-S500. The button to enter the factory mode won't even be displayed. This works only on portables because of how they're built (the CPU and the USB controller are one chip, this is not the case in bookshelf systems / decks).
      • Sony made a tool to convert from ATRAC to MP3: https://www.sony.com/electronics/support/downloads/W0002971
    • Managing tracks [MiniDisc Wiki]
      • Web MiniDisc Pro has two ways to copy tracks on a MD back to the PC: recording and downloading. The Sony MZ-RH1 also allows downloads similar to the exploits method below.
      • If many options are disabled, the disc may be write-protected. Check the write-protect tab on the disc (open = writable; closed = protected).
    • Ignore vs Skip?
      • Bad Sector - Web Minidisc Pro | Reddit
        • asivery
          • Skip this sector discards this sector's data, and jumps to the next one.
          • Ignore writes the corrupted data to the output file you'll download.
        • NeoG_
          • Skip = Delete corrupted data , audio will jump slightly as part has been removed. Track length is slightly shortened.
          • Ignore = Keep corrupted data, audio will act unpredictably while going over the corrupted data such as making glitchy sounds, Track length is preserved.
    • Web Minidisc Pro - Atracdenc vs Remote Atrac encoder, which gives best quality ? | Reddit
      • This is for transferring music to the device
      • I also read this on the web minidisc pro guide page :
        • "SP mode does not need any encoder as the ATRAC processing is performed by the recorder. This also means SP mode records much slower than LP modes."
        • So I guess choosing the Remote Atrac Encoder, doesn't change anything quality wise, when you choose SP mode ?
      • The remote encoder uses Sony's propriety ATRAC3 encoder from the PSP SDK and has a much higher output quality when compared to atracdenc.
        • And indeed, the remote encoder does not impact SP (ATRAC1) audio.
  • Other Sites
  • Buying Guide
    • MiniDisc Buyer's Guide [MiniDisc Wiki] - MiniDisc Buyer's Guide This page is intended to be a compliment to the Getting Started guide, with more details about particular generations of machine, decks, and “gotchas” - for someone new to the MD format, please check the Getting Started guide first. What do you need?
    • All NetMD devices [MiniDisc Wiki] - All NetMD devices Page / USB Capable players
    • Sony MZ-RH1 / MZ-M200 [MiniDisc Wiki]
      • Sony MZ-RH1 / MZ-M200 The last portable MiniDisc recorder produced by Sony.
      • When originally released, it was the only device capable of transferring recordings made on standard MiniDiscs back to a computer. However, this functionality is now available to all USB-equipped HiMD portables as well as a number of NetMD portables thanks to the WebMiniDisc project. A list of the NetMD portables which support this feature can be found Here
    • Devices that support Homebrew features [MiniDisc Wiki]
      • This page lists Type-S and Type-R portables from Sony (as well as direct clones) that support the netmd-exploits as described on the Web Minidisc Pro guide.
      • The exploits for Type-S devices are older and more thoroughly tested. The exploits for Type-R devices currently operate slower and there may still be errors to work out, and not all functions are available.
      • As of this writing, ripping performance is roughly: - Type-R devices will rip at roughly half of real-time, for SP audio. - Type-S devices will rip at roughly 4x real-time, for SP audio.
  • Hardware
    • Write Protect
      • MINIDISC WRITE-PROTECT SWITCH - YouTube
      • Check the write-protect tab on the disc (open = writable; closed = protected)
        • Open mean the tab is there, closed the tab is pushed in so there is a gap/hole.
  • Sony MZ-N710
    • Buy a `Sony MZ-N710`
      • MZ-NF810 same as MZ-710 but with radio tuner.
      • The Italian programmer who originally wrote this software used his MZ-710.
    • Sony MZ-N710 [MiniDisc Wiki] - Sony MZ-N710 Compact and durable NetMD recorder, with its only significant downside being a reliance on gumsticks for internal power, not AA batteries. Works perfectly in both Web MiniDisc and SonicStage. Identical to the MZ-NF810, with the exception of lacking a TV tuner.
    • Sony RM-MC33EL [MiniDisc Wiki] - The remote.
  • Copying MiniDiscs to PC
    • Copying MiniDiscs to PC [MiniDisc Wiki]
      • This guide covers real time audio transfer from a MiniDisc to a PC for archival.
      • Be aware that the most common USB sound card with SPDIF input, the C-Media CM6206, does not accept inputs with a SCMS copy protection signal.
      • Optical and Coaxial digital signals can be converted with an inexpensive adapter.
  • Converting (ATTRAC / .aea) files
    • General
      • AEA files are supported by VLC you can convert them/batch convert them directly from vlc media player under Media/convert/save. (to mp3 should you want to).
    • File information
      • AEA File - What is a .aea file and how do I open it? - Learn about .AEA files and view a list of programs that open them.
        • An AEA file contains audio data encoded in the ATRAC1 format, which is a data compression format developed by Sony. It stores audio most likely dumped from a MiniDisc (MD), which is an optical disc similar to a compact disc (CD) that can be played with various MD players.
        • AEA files are not common, since MDs were introduced back in 1992 and overshadowed by CDs. You will most likely never encounter an AEA file unless you dump audio from an MD you own. You may also receive an AEA file from a friend sharing music dumped from one of his MDs.
        • The ATRAC1 format is a variation of the ATRAC format, which stands for Adaptive TRansform Acoustic Coding. Besides being used in MDs, the format was also utilized in the Sony Dynamic Digital Sound (SDDS) theater sound system in the 1990s.
    • CODEC information
      • ATRAC: Adaptive Transform Acoustic Coding for MiniDisc | minidisc.org
        • Compression of 16-bit 44.1 kHz stereo audio into less than 1/5 of the original data rate with minimal reduction in sound quality.
        • 16-bit 44.1 kHz = (16/44.1)
      • .AEA File Codec Info Question... | Reddit
        • DCT based audio formats don't really have a bit depth, so VLC decodes them all to 32-bit PCM internally. Newer versions of VLC identify this as "decoded bit depth" and report the original bit depth if available, but I suspect for atrac files it is not available, and only the sample rate is.
        • I'm still looking for the most viable way of converting ".aea" files extracted with WebMiniDisc Pro, and although ffmpg is a good option I have the doubt about wich are the best settings for the conversion to WAV or FLAC, since in the VLC info about the ".aea" file, it says that the bit depth is 32 bits wich I find too high but altough the source is only 16 bit I don't want to convert to 16 bit as I would be cutting information from the original minidisc file... so is trully 32 bit the depth of the minidisc files (SP)?
        • VLC worked fine for converting multiple at once but otherwise I used Audacity. For some reason VLC wouldn't play some of the tracks but Audacity does. You can use a software called SPEK to see if information is lost during conversion.
        • The AEA files should be 16/44.1.
        • The decoding is happening with the open source ATRAC1 decoder in ffmpeg/VLC and is itself passable but still not quite as good as if you'd played the audio on a minidisc machine and recorded it onto your computer.
        • I haven't tested converting the AEAs to anything yet but I'd say if the result is any greater than 320 kilobits per second, something is lying along the way. The SP format is only 292kbit/sec and ATRAC isn't that miraculous.
        • An alternative ATRAC decoder (and encoder...) exists in the form of "atracdenc" here: https://github.com/dcherednik/atracdenc
        • I'd just go with converting to a very common lossy format once now (320 kbps MP3 if you want to overdo it, but 128/192 is probably "just fine", and if it's spoken word only - not music - even less than that should be plenty - YMMV) for everyday use and easy accessibility, and keep the AEA files for long-time archival (you can always turn the AEA files into WAV/FLAC using ffmpeg).
        • ffmpeg's source code won't go away that fast, so there will always be the possibility of converting later (assuming the AEA files are smaller than a corresponding FLAC file, so you can save storage space by hanging onto the AEA files + ffmpeg instead of just FLAC). Also, VLC will most likely "forever" be able to play back AEA files on the fly.
    • Guides
    • Tools
    • Other Audio Containers
  • Troubleshooting

 

Read 205 times Last modified on Sunday, 06 October 2024 12:28
Published in Other Devices
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