LG

LG BE14NU40 14x USB 3.0 External Blu-ray Rewriter M-Disc

3.9 (299 reviews)
USB 3.0

Archive decades of memories and stream Blu-ray in stunning quality with this USB 3.0 drive that future-proofs your media library with M-DISC durability.

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Overview

If you're still sitting on years of home videos, photo libraries, or project files with no long-term backup strategy, the LG BE14NU40 is the external drive that finally gives you a practical answer. It writes standard Blu-ray discs at up to 14x speed over USB 3.0, but the real headline is M-DISC support — a write-once archival format that doesn't degrade the way traditional burned discs do. For anyone serious about long-term preservation, that's a meaningful upgrade over a standard BD burner. BDXL support pushes single-disc capacity to 128GB, which means fewer discs and less hassle for large backup jobs.

The drive itself is compact and bus-powered — plug it into a USB 3.0 port and it's ready to go, no wall adapter required. Build quality is solid without being flashy; this is a workhorse peripheral, not a showpiece. The USB 3.0 interface ensures the drive can hit its rated speeds without being throttled by the connection. One practical note: Blu-ray playback requires third-party software like CyberLink PowerDVD, which isn't included — factor that into your cost if playback is a priority. For burning, archiving, and occasional 3D Blu-ray playback, the BE14NU40 covers the bases reliably.

Key Features

Max 14x BD-R Writing Speed

Supports BDXL (128GB) Discs

Operating Systems: Windows Xp, Windows Vista, Windows 7

3D Blu-ray Title Playback & M-Disc Support,USB 3.0 Interface

Superior data protection with M-DISC Support

Specifications

Model
BE14NU40
Interface
USB 3.0
Max BD-R Write Speed
14x
Max Disc Capacity (BDXL)
128GB
M-DISC Support
Yes
3D Blu-ray Playback
Yes
Compatible OS
Windows XP, Vista, 7, 10
Power
Bus-powered via USB

Pros & Cons

👍 Pros

  • USB 3.0 interface unlocks the drive's full 14x BD-R write speed without bottlenecking
  • BDXL support means up to 128GB per disc — far more useful than standard 25GB or 50GB media
  • M-DISC compatibility gives genuinely archival-grade longevity for irreplaceable data
  • 3D Blu-ray playback adds legitimate home theater value beyond just burning discs
  • Bus-powered via USB — no external power adapter needed for most use cases

👎 Cons

  • Official OS support tops out at Windows 7 in documentation, which can cause confusion even though it works on Windows 10/11
  • No macOS support listed or reliably confirmed — Mac users should look elsewhere
  • Playback software is not included — you'll need to purchase or source PowerDVD or similar separately
  • At 14x max, write speeds are competitive but not class-leading compared to newer drives
  • The drive enclosure is utilitarian plastic — it's functional, not premium-feeling on a desk

Frequently Asked Questions

Yes — while the official listing cites XP through 7, the drive functions on Windows 10 and has been reported working on Windows 11 via standard USB drivers. macOS support is limited and not officially listed, so Windows is your safest bet.
M-DISC is a write-once archival format rated for 1,000+ years of data stability — the disc is physically etched rather than dye-burned. It's genuinely worth it for irreplaceable photos, documents, or archives. Regular BD-R discs are fine for everyday backups, but M-DISC is the insurance policy.
Yes, the BE14NU40 supports 3D Blu-ray playback — but you'll need compatible 3D playback software (like PowerDVD) and a 3D-capable display. The drive handles the decoding side; the rest of your setup has to keep up.
For writing large Blu-ray discs, yes. USB 3.0 removes the interface bottleneck, letting the drive hit its full 14x BD-R write speed. On USB 2.0 you'd be capped well below the drive's capability, especially with BDXL discs.
Yes — BDXL support is one of this drive's standout features. At 128GB per disc, that's meaningful capacity for video projects, large backups, or archiving an entire photo library onto a single disc.