OM SYSTEM Olympus DM-720 Review: Strong Audio, Mixed Design
Starting with a pattern users couldn’t ignore — the OM SYSTEM OLYMPUS Voice Recorder DM-720 Silver has built a reputation for delivering “miniature recording studio” capabilities in a pocket-sized metal body. With a score of 8.3/10, it straddles the line between professional-grade dictation and everyday note-taking, earning praise for its recording quality and versatility, but raising eyebrows over certain design oversights.
Quick Verdict: Conditional
| Pros | Cons |
|---|---|
| Excellent voice clarity with 3-mic Tresmic system | No Audible (.aa) support despite past DM models having it |
| Lightweight, durable metal design | Flimsy battery cover design reported |
| Built-in USB for charger/data transfer convenience | SD card expansion limited to 32GB SDHC |
| Flexible recording formats including uncompressed PCM | Awkward charging via wall adapter without cord |
| Voice playback, transcription mode, and scene presets | Extendable USB plug can be impractical for some PC setups |
| Long battery life on single AAA | No WMA playback for legacy recordings |
Claims vs Reality
Olympus markets the DM-720’s Tresmic three-microphone array as “first-class sound recordings,” particularly in group or lecture settings. Verified buyers responded positively: one Trustpilot reviewer said, “It has voice prompts and I love the partial delete feature for editing my voice presentations.” Yet, digging deeper shows limitations at ultra-sensitive levels—Amazon user feedback points to a faint background “hiss” under high sensitivity, though voices remain “clear and legible.”
Another big claim is direct USB connection for “convenient storage of recording data and charging.” While technically true, multiple owners noted ergonomic woes. A verified buyer on Amazon explained, “This can maybe plug into my laptop, but a PC? No. I had to purchase a USB double plug adapter to make it practical.” It delivers on rapid transfers but requires accessories for comfortable use.
Finally, the DM-720 is presented as a transcription-friendly device — with auto-voice playback skipping silences — and here feedback aligns closely with the claim. Reddit user stories confirm the transcription mode’s 3-second rewind works as advertised, shaving time off detailed minute-taking.
Cross-Platform Consensus
Universally Praised
Across Amazon, Trustpilot, and Reddit, the DM-720’s audio fidelity wins repeat accolades, especially for spoken word. A Reddit user reported, “It’s really nice for dictation and meeting notes, and other voice-centric recordings.” The ability to toggle between compressed MP3 and uncompressed PCM means journalists get flexibility — PCM for interviews, MP3 for casual notes.
Its portability is another highlight. The lighter body (72g with battery) impressed longtime Olympus owners transitioning from older bulkier models. As one Trustpilot reviewer put it, “Uses only one AAA battery instead of two due to… technology improvements requiring less power.” Professionals using it daily — teachers, lawyers, podcasters — benefit from not lugging heavy gear.
Battery efficiency also gets consistent applause. 52 hours of recording at low bitrate MP3 translates into multiple days of use without recharge. “So far, battery life seems good. I haven't changed it yet,” shared one Amazon buyer who records frequently.
Common Complaints
The absence of Audible-format compatibility stands out as a sore point for previous DM series loyalists. One frustrated Amazon verified purchase notes, “Olympus pre-sales specifically stated all DM series recorders work with Audible… not true for the 720.” For audiobook listeners accustomed to .aa file support, this is a deal-breaker.
The battery compartment design drew repeated criticism. Amazon reviewers described the door as “flimsiest… bound to the body with what looks like a miniature zip-tie,” and noted that using the attachable clip blocks the cover release. This minor mechanical flaw matters when swapping rechargeables mid-session.
The SD card support, limited to 32GB SDHC, restricts potential as a portable music storage device. While many voice recorders share this limit, technologically inclined users see it as outdated. One long-term Olympus user quipped, “Stuck somewhere between 2006 and 2010… inadequate for a modern-day music player.”
Divisive Features
The extendable USB plug splits opinion. Some praise its direct-to-PC convenience without cables; others warn of physical awkwardness plugging into certain desktops. For mobile workers, it’s a plus; for fixed office setups, a front-facing port or small USB extension cable is almost necessary.
PCM recording is cherished for uncompressed quality, yet casual note-takers often prefer MP3 for space savings. The inability to edit MP3 segments directly on the device is a minor irritation to those wanting offline quick edits. For archival professionals, PCM editing is a gem; for students recording lectures, MP3 editing absence is felt.
Trust & Reliability
Trustpilot feedback paints Olympus as a solid brand for long-term durability. One loyalist noted their DS-50 survived “many drops on the tile floor and even in a bucket of water.” The DM-720, while lighter, passes the “daily use” test — multiple owners report months of uninterrupted operation.
Scam or misrepresentation concerns mostly circle around the Audible issue. Misinformation from pre-sales about compatibility triggered returns. While this doesn't undermine the recorder's core functionality, it points to niche feature reliance: if certain playback formats are mission-critical, confirmation from manufacturer support before purchase is advised.
Alternatives
The WS-853 is mentioned in community threads as a cheaper alternative for users not needing the DM-720’s Tresmic mic array or PCM recording. One Amazon user who bought and returned a WS-853 highlighted that model’s lack of backlit screen as a deal-killer for night use. For Dragon NaturallySpeaking-focused transcription, some suggest DS-series recorders, though the DM-720 remains capable.
Price & Value
eBay listings show open-box DM-720 units around $79.99, well below OM SYSTEM’s official £149/DKK 949 list prices. This gap hints at strong resale/depreciation for those shopping second-hand. Trustpilot and Amazon buyers generally feel the full retail price is justified for professional use, but casual users could save significantly with pre-owned units in “like new” condition.
FAQ
Q: Does the DM-720 support Audible audiobook files?
A: No, it does not support Audible’s .aa format, unlike some older DM series recorders. Buyers reliant on Audible playback should consider alternatives.
Q: Can you edit recordings directly on the device?
A: Yes, but only PCM files allow internal segment erase. MP3 edit requires external software like Audacity.
Q: What’s the maximum SD card expansion supported?
A: The DM-720 supports microSD/microSDHC cards up to 32GB. SDXC cards are not compatible.
Q: Is the USB plug sturdy enough for frequent use?
A: Functionally yes, but multiple users recommend a short USB extension cable to reduce strain and improve usability on recessed ports.
Q: How effective is transcription mode?
A: Users report it saves time by automatically replaying 3 seconds before pauses, making minute-taking more efficient.
Final Verdict:
Buy if you’re a journalist, educator, or transcriptionist needing high-quality voice capture, flexible formats, and reliable battery life in a lightweight form. Avoid if Audible playback or high-capacity SDXC expansion are key needs.
Pro tip from community: Pair the DM-720 with a USB extension cable and a 32GB microSDHC card to maximize practicality and storage without hitting compatibility walls.
