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Olympus DM-520 Digital Stereo Recorder

The DM-520 has been discontinued by the manufacturer. We recommend the Olympus DM-720 as a suitable replacement.


With the DM-520, you can do much more than just record high-quality audio files. It has the advanced software and capabilities you need to record and play back MP3, WMA, and WAV Formats, as well as manage podcasts. With 4GB of internal memory and up to 16GB of external memory, the possibilities are truly limitless.

The DM-520 ships with the exceptional Olympus Sonority software, allowing for easy editing and file management. The software also includes the new Podcast Manager to help you create and download podcasts.


  • Record for up to 1076 hours with 4GB of internal memory
  • 12 recording modes in WMA, WAV, and MP3 stereo formats
  • Playback WAV, MP3, and WMA files
  • PC Link allows you to download files directly to your PC
  • Charge the indluded AAA rechargeable batteries with the USB PC Link
  • Includes Olympus Sonority software with easy file editing, file management, and Podcast Manager
  • Removable media microSD drive
  • Voice Control Voice Activation
  • Playback Speed Control

Included at no extra cost

Technical Support

We want you to be completely happy with your purchase so we offer concierge technical support for as long as your own the product.

Free UPS Ground Shipping (USA Contiguous 48 States)

We know how important it is to get your order fast, so HTH Engineering maintains eleven shipping locations all over the country. As long as your order is placed before 3:30PM Eastern Time it will be shipped on the same business day. Orders placed on weekends or after 3:30PM Eastern Time will be shipped on the next business day.

To redeem your free UPS Ground shipping enter discount code 'dm520quick' at checkout.

View terms of shipping

One Year Warranty & 30 day Guarantee

Your investment is protected by a one-year manufacturer's warranty and our 30 day money-back guarantee.

Additional Information


Olympus DM-520 Digital Stereo Recorder - Model #38520

Package includes:
  • Olympus DM-520
  • Instruction Manual
  • 2 AAA rechargeable batteries
  • Carrying case
  • Strap
  • USB cable
  • Olympus Sonority software
The HTH Engineering Difference
Price: Discontinued

Technical Specifications

Storage Media

Built-in 4GB Flash memory and removable microSD media (up to 16GB)


Backlit LCD

File Format

Record and Playback: WMA, MP3, WAV

Recording Modes & Recording Times (WAV with 4GB internal memory)

48kHz / 16bit 5hr 45m
44.1kHz / 16bit 6hr 15m

Recording Modes & Recording Times (MP3 with 4GB internal memory)

320kbps 27h 45m
256kbps 34h 45m
192kbps 46h 15m
128kbps 69h 30m

Recording Modes & Recording Times (WMA with 4GB internal memory)

STXQ 68h 45m
STHQ 137h 30m
STSP 275h 0m
HQ 275h 0m
SP 541h 0m
LP 1076h 0m

Sampling Frequency

PCM 44.1 - 48kHz / 16bit
WMA 8 - 44kHz / 5 - 256kbps
MP3 8 - 44.1kHz / 8 - 320kbps

Data Organization

Folders 5 (plus music and podcast folder)
Files per folder 999
Messages per folder 200
Index Marks per file 16

Interface Input

PC Interface USB Direct, 2.0 Full Speed
Microphone jack 3.5mm / Impedence, 1.4 kOhm
Microphone sensitivity Conference / dication
Input level -70 dBv

Interfaces Output

Speaker 23mm round dynamic speaker
Earphone jack 3.5mm / Impedance, 8 Ohm

Power Supply

Power supply 2 AAA batteries (Rechargeable included)
Battery Life (Recording) 51 Hours


Weight 84g (incl. batteries)
WxHxD 110 x 38.9 x 16mm

Operating Systems & Requirements

  • Operating system: Microsoft Windows Vista Ultimate, Enterprise, Business, Home / XP Professional, Home Edition / 2000 Professional
  • CPU (Windows 2000/XP): 500 MHz processor or faster
  • CPU (Windows Vista): 800 MHz processor or faster
  • RAM (Windows 2000/XP): 128 MB or more
  • RAM (Windows Vista): 512 MB or more
  • Hard drive space (Dictation Module): 70 MB or more
  • Hard disk space (Microsoft .NET Framework Version 2.0): 700 MB or more
  • Display: 800 x 600 pixels or more 65536 colours or more
  • Drive: 2 x or faster CD-ROM, CD-R, CD-RW, DVD-ROM
  • USB port: One or more free ports
  • Audio I/O terminals: Windows-compatible sound
  • Internet Explorer 6.0 or later

  • Olympus DM-520 Digital Stereo Recorder

Olympus DM-520 Digital Stereo Recorder



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HTH Engineering, Inc., Computer Hardware, Tarpon Springs, FL