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💿 Unlock cinematic UHD power in a slim, silent package
The Hitachi-LG BU40N is a slim 9.5mm internal Blu-Ray/DVD drive designed for laptops and desktops, supporting Ultra HD 4K and 3D Blu-Ray playback. It reads and writes high-capacity BDXL discs up to 128GB and supports M-Disc for long-term data preservation. Featuring 6x read/write speeds and Silent Play Technology, it offers a quiet, high-performance optical solution compatible with Windows 10 and SATA interfaces.





| Brand | LG |
| Hardware interface | SATA 1.5 Gb/s |
| Hardware platform | Laptop, PC |
| Optical storage read speed | 6x or higher |
| Optical storage write speed | 6x |
| Special feature | Ultra-thin 9.5mm interior |
M**K
Brilliant drive
I've been using this for the last year on Windows 11 burning back ups of my files. 5 DVDs now fit on one blu-ray disc. Acu-Disc's pro series work really nice with this drive. 25GB per disc, makes it effortlessly easy for backing up documents/photos/projects etc. A must if you value your data. Comes as just the bare drive in a plain cardboard box. You will need the thinner 9.5mm external drive enclosures, the others will allow the drive to wobble too much and the tray to get stuck unless you use some cardboard to wedge it in...
C**T
Works in a desktop PC, LibreDrive friendly, maybe the last of them
Using a "slimline SATA to normal SATA adapter" (B0C9T78N3V) I was able to connect this "laptop" drive to my desktop PC SATA. It works perfectly. My drive came with firmware 1.05. I was able to backup my 3D Blu Rays using MAKEMKV without updating the firmware. The drive is LibreDrive capable and I've done this. These laptop drives are pretty feeble when it comes to ejecting the disk, compared to a "proper" 5.25" drive. You press "eject" and it pops out an inch or two, not the nice "all the way out, all the way in" mechanics of a desktop drive. However, desktop (5.25") optical drives are extremely rare now that production of them is winding down (or ceased). Grab this slim BU40N while you can. It's totally MAKEMKV and SDF Flasher compatible. It can read DVD/Blu Ray (including 3D) and UHD (once the firmware is correct). I have quite a few 3D Blu Ray disks (about £400 worth). I have a Panasonic "home theatre" 3D Blu Ray player (about £600). I had a 3D OLED TV which died (£2000). They don't make 3D TVs anymore. So I'm left with £1000 of "waste". To watch my legit 3D movies I've had to: 1. Buy a Blu Ray reader for my PC (I don't burn copies - my intentions are honest) 2. Use MAKEMKV to create a file on my PC 3. Buy the Sony PSVR2 headset (I have a PS5 anyway) + PC adapter 4. Install Steam + SteamVR + Sony PSVR2 App 5. Install PotPlayer (this is excellent) 6. Install Steam "BigScreen BETA" 7. Run PotPlayer to play my 3D mkv file in full screen SBS mode 8. Run BigScreen and tell it to "SBS" (side by side) into my PSVR2 headset 9. Swear a lot trying to get all of the above working "seamlessly" It works. It's not ideal. Without this BU40N it would be impossible and that £1000 would become "consumer waste". I worked dang hard for that money. It's not going without a fight!
G**S
Great UHD Blu-ray slimline device
Brilliant device capable or reading UHD Blu-ray. Dropped a star as the cover is narrower than normal slimline dvds and can get jammed in my external enclosure. Seems compatible with a large range of films both on dvd, Blu-ray and uhd Blu-ray
R**G
Works well..well worth the cost read all review please
The dvd writer in my Dell laptop has been a bit unreliable since I bought it but as it was in constant use I couldn't send it back. I did also need a Blu Ray burner anyway. It is easy to install. Just one screw on the Dell to take out. The bezel from the old drive fits perfectly and it slotted in perfectly. In use as noted by other it can be little noisy when in play mode. However so far I have had no burn failures for CD DVD or Blu Ray disks unlike the other drive when I lost 1-4 disks in each weekly production run of about 10 disks. So far have been using 25gb 4x for BD. Write speeds are never up to max. Usually only half or less of stated disk. But that could be down to the Roxio software being cautious. I usually have found that Hitachi-LG optical drives to be reliable. So hopefully this will give good reliable service for a long as I need it UPDATE Yesterday was backing up data and began getting one disk failure after another. Also writing was only 2x max for 4x rated disk. Nor only that it about 2/3 through it dropped to 0.02x at times and took 2-3 hours per disk - if it finished them. It turned out to be the burning software (Roxio) was the culprit. When I used Nero the difference on the same disks was incredible. 4x consistent write, data checked and so far all 3 disks OK. It might be some settings in Roxio needed to be tweaked not sure. SO conclusion is that if you are having problems with disk write failures check first for fingerprints on disk (might have been problem) or try seeing if tweaks in burn software will help or try using different software or upgrade software. Apart from that one glitch the drive has been working perfectly since.
L**Y
Great product
Excellent product, thin, light, fast, reads/write everything. Probably a bit noisy but considering dimensions it's expected. I use this to write new disks but also to validate used 4K UHD blu rays without the need to watch them on TV (I use ImgBurn to validate). It's quicker in case you buy many used movies and can't watch all of them in a short amount of time :)
R**M
Does what it says
Drive wasn't detected using a slimline sata to usb cable but that was down to a cheap cable that couldn't deal with drive commands. Slimline sata to full sata, then that to usb works fine. Drive working according to spec so happy. Let's see how long it lasts.
L**M
An excellent Blu-ray drive
This Blu-Ray drive is fantastic, it works as intended with no read or write errors. My laptop does not have a DVD/Blu-ray drive or bay, so I bought this drive as I wanted to rip some old VHS videos from pre-burned discs and burn the copy's onto some Verbatim Blu-ray M-Discs. I take data archiving quite serious, and this drive ensures me no errors. I don't use the drive all the time, I use it when I archive important photos and videos. I have tried playing back DVD and Blu-Ray films and its playback is as intended too. I am using an internal to external drive enclosure and that works with it seamlessly. I have also got a 7+6 13 pin SATA adapter cable that supports this drive and it powers the drive perfectly through standard USB. (links below) Internal to external enclosure (shown in photo): https://www.amazon.co.uk/dp/B0BLZD83VV?psc=1&ref=ppx_yo2ov_dt_b_product_details USB 3.0 to 7+6 13pin Slimline SATA Adapter Cable: https://www.amazon.co.uk/dp/B073QNN1C5?ref=ppx_yo2ov_dt_b_product_details&th=1 I bought this drive along with a 3 year warranty for reassurance if anything goes wrong or bad with the drive. I will update this review if this happens. Overall, I recommend. Great product!
C**W
Works fine, but not if you need to digitise your UHD library
Works fine as far as I can tell, but I got it to digitise our 4K library which this drive can't do. Returned it and instead picked up a Verbatim 43888 which does work with makemkv.
B**D
Gut diese :)
Heute (05.06.26) das Laufwerk aus ziemlich aktueller Produktion erhalten. (Produktion aus März 2026, Firmware 1.05) Das Gerät funktioniert wunderbar. Nach flashen auf eine andere Firmware können damit auch UHD Blu Rays verwendet werden.
R**Y
Works fine so far with Linux
No problems encountered so far. The drive is shipped with version 1.5 firmware, so if you want to use makemkv, you'll need to downgrade to version 1.3 .
S**E
perfect for ripping 4k blu-rays!
works fine with makemkv after flashing the firmware.
A**L
Lg bu40n simplemente la mejor.
Lg bu40n se envía en bolsa de plástico dentro de la caja de cartón de amazon. Decir que para mi es la mejor grabadora de discos 4K, ni un solo fallo en ninguna de mis copias de seguridad con makemkv. Eso si hay que hacerle el downgrade del firmware. Muy contento con esta pequeña y silenciosa grabadora.
M**L
Good device
Niets mis met deze brander lezer. Heb m los geprobeerd maar hij paste niet in mijn computer. Dus is hij terug gestuurd,
Trustpilot
2 weeks ago
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