Can’t say you can do the same with CDs! Data on records is stored in grooves on the surface of the vinyl, so you can duplicate a record using this casting technique. [via Make: Online]


Becky Stern

Becky Stern

Becky Stern ( is a DIY guru and director of wearable electronics at Adafruit. She publishes a new project video every week and hosts a live show on YouTube. Formerly Becky was Senior Video Producer for MAKE. Becky lives in Brooklyn, NY and belongs to art groups Free Art & Technology (“release early, often, and with rap music”) and Madagascar Institute (“fear is never boring”).

  • Edward Pisarski

    The only problem i could see with this is that you would have a one sided recording. The opposite side would just be smooth.

  • MusicMan

    Uh… why? The copy will sound pretty bad compared to the original and probably won’t last very long. If you have a good turntable, tonearm, and cartridge, the copy could be damaging to the stylus since the material the copy is made from doesn’t have properties identical to the original. All you need is a wrecked diamond stylus on your expensive phono cartridge. There’s no way the copy can retain the high-frequency detail present in the original. AND… any damage present on the original (wear, scratches, warps, etc.) will be present in the copy.
    This is a perfect example of just because you CAN do something, doesn’t mean you SHOULD do it.
    It would be far better to play the record you want to copy one more time on excellent playback equipment (so it sounds half-decent, cheap phono gear is VERY unimpressive sounding). Send the output to a high quality analog-to-digital converter, and save it in a lossless digital format. This will last “forever” (if you backup) with no worries about wear or damage to your phono playback gear.

  • Gundossxd

    Aloha! lgn

  • Gundosslq

    Aloha! gay