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Audio formats that can be recorded are MP3, WMA and WAV, all in stereo and all can be of various sample rates.

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4GB internal memory and up to 16GB Micro SD memory

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Records Stereo MP3, WMA and WAV files at top quality

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USB connection can charge the 2 included AAA NiMH batteries

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Voice recognizing hands free record option

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Sonority software included for audio editing and file management

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Big easy to navigate screen and function controls

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Playback in stereo via left and right speakers or included earphone

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Lowest recording rate gives 1076 hours of recording time

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  • Only 3 words are allowed.

External microphones and Micro SD cards sold separately

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  • Only 3 words are allowed.


The Olympus DM-520 is a digital hand held voice recorder/music player that can record over a thousand hours of audio and comes with 4GB of internal flash memory and Micro SD card slot for another possible 512MB - 16GB of storage. Audio formats that can be recorded are MP3, WMA and WAV, all in stereo and all can be of various sample rates. Highest quality rates offered are 44.1kHz/320kbps MP3, 44.1kHz/128kbps WMA and  48kHz/16 bit WAV with the lower rates offering increased recording time. Not only are the files recorded in stereo with a stereo zoom microphone but the DM-520 also has two speakers for stereo playback and a headphone jack for listening privately. Items included with the unit include an earphone, USB cable, strap and carrying case, 2 rechargeable batteries and the Sonority software. One is also able to purchase an accessory kit along with the DM-520 which includes an external microphone with extension cable and tie clip and a 4GB Micro SD card. Consider this the only slightly bigger brother to the silver Olympus DM-420 with all the same features and accessory pack option but with 2GB of internal memory instead of four.

  • USB connection
  • Over 1000 hours maximum recording time
  • Stereo recording of MP3, WMA and WAV files
  • Variable Control Voice Actuator (VCVA) records only when sound is sensed
  • Stereo playback via left and right speakers or 3.5mm stereo headphone jack
  • File system: 1 music folder, 1 podcast folder and 5 voice folders(999 files per folder)
  • Olympus Sonority software included for editing and file management
  • Battery type: 2 AAA NiMH(included)
  • Battery Life: 51 hours
  • Memory: Built-in 4GB flash memory and Micro SD card slot(512MB - 16GB cards)
  • Recording Rates: MP3: 44.1 kHz / 128 kbps - 320 kbps (28 - 70 hours)
  • WMA: 8 kHz - 44.1 kHz / 8 kbps - 128 kbps (6.75 - 1076 hours)
  • WAV: 44.1 kHz - 48 kHz / 16 bit (5.75 - 6.25 hours)
  • Headphone and Microphone Jacks: 3.5mm
  • PC and Mac compatible
Post Review
Raven Tango
11/24/2010 02:19

I have just bought one and it's a very nice experience - I just love it such a good quality. I use it doing daily recordings set on schedule and it's like a Swiss watch or better stays exactly on time week after week haven't seen that before. I recommend the Olympus DM-520.

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