Question 1

What's the difference between a DVD writer and a Blu-ray writer?

Accepted Answer

A Blu-ray writer can read and write both Blu-ray and DVD/CD discs, while a DVD writer is limited to DVD and CD formats only. The practical difference is storage capacity: a standard BD-R disc holds 25 GB (or 50 GB dual-layer), compared to just 4.7 GB for a single-layer DVD. Blu-ray writers cost significantly more — typically from 44 £ upwards — so only buy one if you actually need Blu-ray functionality.

Question 2

Do I need special software to play Blu-ray films on my PC?

Accepted Answer

Yes — and this catches a lot of buyers out. Commercial Blu-ray discs use AACS copy protection, which requires licensed decoding software to play back legally. Windows Media Player and VLC do not support this out of the box. You'll need paid software such as PowerDVD or Leawo Blu-ray Player. Some drives bundle a trial version, but check carefully before assuming playback is included in the purchase price.

Question 3

Is a USB 2.0 optical drive good enough, or should I insist on USB 3.0?

Accepted Answer

For DVD writing, USB 2.0 is technically sufficient, but USB 3.0 is worth choosing whenever possible. The price difference is usually minimal, and USB 3.0 provides noticeably faster disc reads and better performance with Blu-ray drives. Most current models from ASUS and Hitachi-LG ship with USB 3.0 as standard, so you'd have to actively seek out a USB 2.0 model to end up with one.

Question 4

Can I install an external optical drive on a MacBook or Chromebook?

Accepted Answer

Yes, most USB external drives work plug-and-play with macOS and Chrome OS for reading and basic DVD/CD writing. However, Blu-ray playback on macOS requires third-party software, and some drives' bundled utilities are Windows-only. Always check OS compatibility in the product specifications — ASUS ZenDrive models, for instance, explicitly list macOS support, which not all drives do.

Question 5

Are cheap no-name optical drives worth buying?

Accepted Answer

Generally, no — and this is one category where sticking to known brands pays off. Cheap unbranded drives frequently lack buffer underrun protection, use lower-quality laser assemblies, and have poor long-term reliability. For a few pounds more, Hitachi-LG and Lite-On offer proven hardware with proper firmware support. The risk of a ruined burn or a drive that fails after six months isn't worth the saving below 18 £.

Question 6

What is M-Disc support, and do I need it?

Accepted Answer

M-Disc is a write-once optical disc format designed for extremely long-term archiving — manufacturers claim up to 1,000 years of data retention under proper storage conditions. It requires a compatible drive (select ASUS and Verbatim Blu-ray models support it) and special M-Disc media, which costs more than standard BD-R discs. Unless you're archiving genuinely irreplaceable data — family photos, legal documents, master recordings — standard BD-R is more than adequate for most people.

Question 7

Why are internal optical drives so much cheaper than external ones?

Accepted Answer

Internal drives omit the USB controller, external casing, and cable that external models require — all of which add cost. An internal SATA DVD drive can be found from 18 £, while a comparable external model typically starts closer to 33 £. The trade-off is that internal drives require a compatible drive bay in your machine, which rules them out for most modern laptops and slim desktops. If your machine supports it, an internal drive is excellent value.

Optical Disc Drives Price Comparison

HP 9.5mm Slim SuperMulti DVD Writer Drive

HP USB External DVDRW Drive

HP USB External DVDRW Drive

HP External USB DVDRW Drive

HP Mobile USB NLS DVD-RW Drive optical disc drive DVD±RW Black

Optical Disc Drives Price Comparison