BU40N putting circular scratches on some discs.

Forum for discussions about UHD-capable dives
Post Reply
jamisonia
Posts: 24
Joined: Wed Apr 08, 2020 9:37 pm

BU40N putting circular scratches on some discs.

Post by jamisonia »

Been having an issue recently where my LG BU40N fails to rip 4k discs with hash errors then the disc comes out with circular scratches. These discs are brand new and rendered unusable. I've tried cleaning the drive, which didn't help. The drive is only a few months old. Is this potentially a firmware issue?
Billycar11
Posts: 1464
Joined: Sun Aug 24, 2014 5:49 am

Re: BU40N putting circular scratches on some discs.

Post by Billycar11 »

No get rid of that drive and ask lg to pay for your replacement discs it's not caused by firmware it a drive hardware problem.
Buy a UHD drive from the guide and how to video maker: https://www.makemkv.com/forum/viewtopic ... 20&t=17831
UHD Drives Guide: https://www.makemkv.com/forum/viewtopic ... 16&t=19634
Auto self flash kit Email me for one Billycar5924@gmail.com
jonghotti
Posts: 950
Joined: Tue May 01, 2018 7:04 pm
Location: San Francisco Bay Area
Contact:

Re: BU40N putting circular scratches on some discs.

Post by jonghotti »

jamisonia wrote:
Mon Jan 18, 2021 1:10 am
Been having an issue recently where my LG BU40N fails to rip 4k discs with hash errors then the disc comes out with circular scratches. These discs are brand new and rendered unusable. I've tried cleaning the drive, which didn't help. The drive is only a few months old. Is this potentially a firmware issue?
Please email or PM me regarding this issue.
The Original "UHD Friendly" Drive Seller
https://www.makemkv.com/forum/viewtopic ... 20&t=17829
asmcom
Posts: 200
Joined: Tue Apr 02, 2019 3:26 pm
Location: United Kingdom

Re: BU40N putting circular scratches on some discs.

Post by asmcom »

jamisonia wrote:
Mon Jan 18, 2021 1:10 am
Been having an issue recently where my LG BU40N fails to rip 4k discs with hash errors then the disc comes out with circular scratches. These discs are brand new and rendered unusable. I've tried cleaning the drive, which didn't help. The drive is only a few months old. Is this potentially a firmware issue?
I am sorry to hear about this. Please contact Jonghotti about this as we are aware of this problem and are in contact with LG about this serious issue.

Asmcom :mrgreen:
b***t (Fantastic service, comms and item. Best ebay experience ever)
h***i (49) Best communication ever, extremely fast shipping, excellent seller!
Click Here! viewtopic.php?f=20&t=19387
jonghotti
Posts: 950
Joined: Tue May 01, 2018 7:04 pm
Location: San Francisco Bay Area
Contact:

Re: BU40N putting circular scratches on some discs.

Post by jonghotti »

We've been in touch regarding this extremely serious issue.
The Original "UHD Friendly" Drive Seller
https://www.makemkv.com/forum/viewtopic ... 20&t=17829
jamisonia
Posts: 24
Joined: Wed Apr 08, 2020 9:37 pm

Re: BU40N putting circular scratches on some discs.

Post by jamisonia »

Yep I've been in touch with jonghotti and went ahead and purchased a WH14NS40 while its sorted out.

To give more details for anyone else who might be interested I've had this drive since March. Its ripped scores of 4K and BDs. I believe it scratched by BTTF Bonus disc in October, but I wasn't sure if it was dirty, or if maybe came that way. I didn't look super hard, and since it was the Bonus Disc I didn't really care. But it has the same circular scratches.

I just set up an SMB server. When I rip to the SMB server directly with this drive it will scratch the discs every time. If I rip to my local SSD or to USB HDDs it doesn't scratch. I think this might have had to do with advance power management Open Media Vault was doing to the drives which was slowing down the transfer speed in the middle of the rip and causing the drive to outpace the transfer. Nevertheless I don't think this should have caused the BU40N to physically scratch the discs. Maybe people who know more than me can answer why that may be. But this is why I thought it might have been firmware related.

Anyway thanks for everyone's help.
Coopervid
Posts: 228
Joined: Tue Feb 19, 2019 10:32 pm

Re: BU40N putting circular scratches on some discs.

Post by Coopervid »

That's just a mechanical problem. Not related to any software setup.
jonghotti
Posts: 950
Joined: Tue May 01, 2018 7:04 pm
Location: San Francisco Bay Area
Contact:

Re: BU40N putting circular scratches on some discs.

Post by jonghotti »

Coopervid wrote:
Thu Jan 21, 2021 10:16 pm
That's just a mechanical problem. Not related to any software setup.
Problem with the drive, yes, not sure yet if it’s hardware, software, firmware or personnel :-)
The Original "UHD Friendly" Drive Seller
https://www.makemkv.com/forum/viewtopic ... 20&t=17829
Post Reply