Web MiniDisc is an online cross-platform web app based on a port of Linux-Minidisc to TypeScript (netmd-js on GitHub). Requires a Chromium-based browser.

• Click the icon next to the model number of your MD recorder to access
  • “Refresh” to refresh the list of tracks on the MiniDisc
  • “Rename Disc” to assign a title to your MiniDisc
  • “Wipe Disc” to erase the disc
  • “Exit” to exit Web MiniDisc
  • Drag MP3, FLAC, or WAV files to the web browser window to record them on the MiniDisc. When you do this, you'll be prompted to choose between SP, LP2, and LP4 modes for your recording. You'll probably want SP, which is the highest quality; LP2 and LP4 let you record more content at the expense of some audio quality. SP is also compatible with all MD-capable audio equipment.
  • Play, skip tracks, or stop playback of the currently inserted MiniDisc using the transport buttons along the bottom of the window.

Recording takes some time, but it does occur faster than audio to audio or optical to audio dubbing (The MZ-N910 or MZ-N920 seems to have the fastest recording time).