www.makemkv.com

argonassassin wrote: Tue Dec 30, 2025 9:09 pm I just downloaded the flasher and have a question about redirecting where it looks for make mkv. Currently on my pc I've stopped downloading things into my C drive unless it's absolutely necessary so when I finished installing the SDF tool flasher it tells me to install Make MKV. Is there any way to change it's hunting path or do I just need to install make mkv onto my C Drive?

Currently make mkv 1.18.2 is installed in D:\Programs\Makemkv.

MartyMcNuts wrote: Tue Dec 30, 2025 9:22 pm ...
I don't know if this would work but you might even be able to just copy the MakeMKV directory to "C:\Program Files (x86)" then delete it when you are finished.

MartyMcNuts wrote: Tue Aug 18, 2020 1:39 am UPDATE - 21/12/2021:
The latest version of the SDFtool Flasher has a checkbox option to flash the boot loader with the main firmware to the drive, although, currently there's really no need to use it.

For the moment, to flash the BP50NB40 SVC:NB52, using the latest SDFtool Flasher, follw the steps below:

This is a multi-step procedure. Watch the gif below, then watch it again!!

1. Flash the drive to BP50NB40 (NB50) 1.03-MK.

After a successful flash to the MK firmware of the drive do the crossflash:

2. Select the RECOVERY option and in the pop up window (as per the window title text), select the BP50NB40 (NB50) 1.03-MK firmware that you just flashed and click OPEN.
3. Select the BP60NB10 1.00-MK or BU40N 1.00 firmware in the normal firmware selection drop box (as per the window title text) then click OPEN.
4. Click START

Here's a visual aid for you:

Noob123 wrote: Mon Jan 05, 2026 10:31 pm I'm new to the forum and this is my first post.

I recently purchased a Verbatim 6888 optical drive and attempted to use the SDFtool Flasher to flash the firmware. The internal drive is the BU40N model. I have attempted to back up several of my UHD discs but they have all failed. Can anyone check my drive information to verify that I have successfully enabled LibreDrive?

Drive Information
OS device name: /dev/rdisk7
Current profile: BD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: -
Firmware date: 2116-12-20 15:28
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 1.00
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Billycar11 wrote: Mon Jan 05, 2026 11:46 pm

Noob123 wrote: Mon Jan 05, 2026 10:31 pm I'm new to the forum and this is my first post.

I recently purchased a Verbatim 6888 optical drive and attempted to use the SDFtool Flasher to flash the firmware. The internal drive is the BU40N model. I have attempted to back up several of my UHD discs but they have all failed. Can anyone check my drive information to verify that I have successfully enabled LibreDrive?

Drive Information
OS device name: /dev/rdisk7
Current profile: BD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: -
Firmware date: 2116-12-20 15:28
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 1.00
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Looks fine what's the error maybe the drive is not getting enough power

Noob123 wrote: Tue Jan 06, 2026 1:35 am

Billycar11 wrote: Mon Jan 05, 2026 11:46 pm

Noob123 wrote: Mon Jan 05, 2026 10:31 pm I'm new to the forum and this is my first post.

I recently purchased a Verbatim 6888 optical drive and attempted to use the SDFtool Flasher to flash the firmware. The internal drive is the BU40N model. I have attempted to back up several of my UHD discs but they have all failed. Can anyone check my drive information to verify that I have successfully enabled LibreDrive?

Drive Information
OS device name: /dev/rdisk7
Current profile: BD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: -
Firmware date: 2116-12-20 15:28
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 1.00
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Looks fine what's the error maybe the drive is not getting enough power

Here's the full error report:

Saving 1 titles into directory
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Failed to save title 0 to file
Encountered 11 errors of type 'Read Error' - see http://www.makemkv.com/errors/read/
0 titles saved, 1 failed

Noob123 wrote: Tue Jan 06, 2026 1:35 am

Billycar11 wrote: Mon Jan 05, 2026 11:46 pm

Noob123 wrote: Mon Jan 05, 2026 10:31 pm I'm new to the forum and this is my first post.

I recently purchased a Verbatim 6888 optical drive and attempted to use the SDFtool Flasher to flash the firmware. The internal drive is the BU40N model. I have attempted to back up several of my UHD discs but they have all failed. Can anyone check my drive information to verify that I have successfully enabled LibreDrive?

Drive Information
OS device name: /dev/rdisk7
Current profile: BD-ROM
Manufacturer: HL-DT-ST
Product: BD-RE BU40N
Revision: 1.00
Serial number: -
Firmware date: 2116-12-20 15:28
Bus encryption flags: 17
Highest AACS version: 81

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Original (unpatched)
Firmware version: 1.00
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Looks fine what's the error maybe the drive is not getting enough power

Here's the full error report:

Saving 1 titles into directory
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Failed to save title 0 to file
Encountered 11 errors of type 'Read Error' - see http://www.makemkv.com/errors/read/
0 titles saved, 1 failed

nicholfd wrote: Tue Jan 06, 2026 2:12 am

Noob123 wrote: Tue Jan 06, 2026 1:35 am

Billycar11 wrote: Mon Jan 05, 2026 11:46 pm
Looks fine what's the error maybe the drive is not getting enough power

Here's the full error report:

Saving 1 titles into directory
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Failed to save title 0 to file
Encountered 11 errors of type 'Read Error' - see http://www.makemkv.com/errors/read/
0 titles saved, 1 failed

Probably power (my personal experience with this model).

Noob123 wrote: Tue Jan 06, 2026 3:23 am

nicholfd wrote: Tue Jan 06, 2026 2:12 am

Noob123 wrote: Tue Jan 06, 2026 1:35 am

Here's the full error report:

Saving 1 titles into directory
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Posix error - Input/output error' occurred while reading '/dev/rdisk7' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Error 'Scsi error - MEDIUM ERROR:L-EC UNCORRECTABLE ERROR' occurred while reading '/BDMV/STREAM/00014.m2ts' at offset '9572315136'
Failed to save title 0 to file
Encountered 11 errors of type 'Read Error' - see http://www.makemkv.com/errors/read/
0 titles saved, 1 failed

Probably power (my personal experience with this model).

I suspect that you're correct. I have tried several clean UHD discs and they all behave the same way. 20 min in they start spinning intermittently as if they pausing or having trouble. The Verbatim 43888 drive does not have a separate power supply. It came with a USB C to USB A cable and a USB A to C adapter. I used the adapter and I also tried a straight Usb C to C cable. Same errors.

nicholfd wrote: Tue Jan 06, 2026 3:52 am

Noob123 wrote: Tue Jan 06, 2026 3:23 am

nicholfd wrote: Tue Jan 06, 2026 2:12 am

Probably power (my personal experience with this model).

I suspect that you're correct. I have tried several clean UHD discs and they all behave the same way. 20 min in they start spinning intermittently as if they pausing or having trouble. The Verbatim 43888 drive does not have a separate power supply. It came with a USB C to USB A cable and a USB A to C adapter. I used the adapter and I also tried a straight Usb C to C cable. Same errors.

On Amazon you can buy a USB cable that has 2 x USB connections on the same end, one for data/power & the other for additional power.

Noob123 wrote: Tue Jan 06, 2026 4:29 am

nicholfd wrote: Tue Jan 06, 2026 3:52 am

Noob123 wrote: Tue Jan 06, 2026 3:23 am

I suspect that you're correct. I have tried several clean UHD discs and they all behave the same way. 20 min in they start spinning intermittently as if they pausing or having trouble. The Verbatim 43888 drive does not have a separate power supply. It came with a USB C to USB A cable and a USB A to C adapter. I used the adapter and I also tried a straight Usb C to C cable. Same errors.

On Amazon you can buy a USB cable that has 2 x USB connections on the same end, one for data/power & the other for additional power.

Do you have a link?

Am I the first person to attempt to enable UHD capability on the Verbatim 43888 drive?

Mr_Orange wrote: Tue Jan 06, 2026 4:49 am

Noob123 wrote: Tue Jan 06, 2026 4:29 am

nicholfd wrote: Tue Jan 06, 2026 3:52 am

On Amazon you can buy a USB cable that has 2 x USB connections on the same end, one for data/power & the other for additional power.

Do you have a link?

Am I the first person to attempt to enable UHD capability on the Verbatim 43888 drive?

No, you aren't, not by a long stretch. The original versions came with a native UHD Pioneer drive inside. The current versions come with an LG BU40N, which needs flashing with SDFTool Flasher.

Noob123 wrote: Tue Jan 06, 2026 5:12 am

Mr_Orange wrote: Tue Jan 06, 2026 4:49 am

Noob123 wrote: Tue Jan 06, 2026 4:29 am

Do you have a link?

Am I the first person to attempt to enable UHD capability on the Verbatim 43888 drive?

No, you aren't, not by a long stretch. The original versions came with a native UHD Pioneer drive inside. The current versions come with an LG BU40N, which needs flashing with SDFTool Flasher.

That was my assumption. It has already been flashed. I am wondering if those who have already flashed this model has experienced a similar issue or if they were able to read UHD discs with the supplied USB cable without any issues. It would also be helpful to know if anyone has used a duplex USB cable with this drive before.