LG Ultra Slim Portable Blu-ray Writer BP50NB40 - M-DISC Support

In this review the LG Ultra Slim Portable Blu-ray Writer BP50NB40 is assessed for users who need a compact external optical drive with broad media support. The bottom line: it is best for people who want reliable playback and disc authoring on the go, especially for Blu-ray and M-DISC archival work, because it combines a slim, USB-powered design with support for a wide range of read and write formats and the convenience of Mac OS X compatibility.

Key Features

• Ultra slim black enclosure: The slim, lightweight profile makes it easy to carry with a laptop or tuck into a bag for mobile work without adding bulk.
• M-DISC support: Built-in M-DISC compatibility provides a means for long-term archival burning on supported BD media for important backups.
• Broad write speed range: Multiple BD, DVD and CD write modes including 6x BD-R and up to 24x CD-R deliver flexible performance for different media and projects.
• USB 2.0 connectivity: USB 2.0 480Mbps burst transfer gives plug-and-play compatibility across many systems including Mac OS X without needing an external power supply.
• Silent Play and Jamless Play: Quiet operation and jam-reduction features help when watching discs or ripping content on a laptop in tight spaces.

Who It's For

This drive is tailored to laptop users, media enthusiasts and content creators who need an external optical drive that handles Blu-ray playback, BD authoring and archival burns. It is also a sensible option for owners of systems lacking internal drives who want Mac OS X compatibility and M-DISC support for long-term data retention.

It is less suitable for users who require the fastest possible transfer rates or a reinforced industrial build for heavy daily use; some customers reported failures after extended use, and the USB 2.0 interface is slower than newer alternatives if raw transfer speed is the priority.

Pros & Cons

Pros

• Supports a wide range of disc formats including BD-R, BD-RE, DVD and CD, providing versatility for playback and burning.
• M-DISC compatibility adds archival-grade burning capability for long-lived data storage.
• Compact, quiet operation with Silent Play and Jamless Play is convenient for laptops and living-room playback.

Cons

• USB 2.0 interface limits peak transfer speed compared with USB 3.0 alternatives, which can slow large backups and rips.
• Some users reported durability issues with early failures, so heavy daily use may expose sturdiness limitations.

Specifications

Our Verdict

The LG BP50NB40 is a practical, value-oriented external Blu-ray writer for users who need broad format support and archival M-DISC capability in a slim, quiet package. It is a good buy for occasional burners, Blu-ray viewers and Mac users, but those needing the fastest transfers or industrial durability should consider alternatives.

Frequently Asked Questions

Is this drive Mac OS X compatible?
Yes, the unit is compatible with Mac OS X for playback and burning with appropriate software.

Does it support archival M-DISC media?
Yes, the drive explicitly supports M-DISC BD-R for long-term archival burns.

Will it work without an external power supply?
Yes, it is USB-powered using the USB 2.0 interface, so no separate power adapter is required for normal laptop use.