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• No 4K UHD (tested several)
• No Blu-ray (tested several)
• No DVD
• No CD

OakManor wrote: ↑

Mon Jun 14, 2021 12:03 am

I have a similar situation where my working LibreDrive flashed enclosure stopped working and just spits out discs.

I have an external OWC Mercury Pro 16X Blu-ray, 16X DVD, 48X CD Read/Write Solution which comes shipped with a LG WH16NS40. When I received it at the end of 2020, I dumped the firmware settings that I could with sdftool and it produced:

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dump_user_HL-DT-ST_BD-RE__WH16NS40_1.04_211901041348_KLIJ8Q83155.tar

I flashed it to

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HL-DT-ST-BD-RE_WH16NS40-NS50-1.05-NM00900-212005061440.bin

It successfully worked across numerous DVDs and Blu-rays for almost half a year. At some point, without ever re-flashing it, the drive stopped reading any type of disc.

If I attempt to power-on the external enclosure with a Blu-ray inside the tray, the drive blinks blue and produces some spinning noises for 55 seconds until it stops spinning and stops blinking any lights. The tray does not automatically eject. This is repeatable and consistent. The OS reports the USB device is connected but MakeMKV reports no usable optical drives.

If I attempt to power-on the external enclosure with a DVD inside the tray, the drive blinks blue and produces some spinning noises for 35 seconds until it stops spinning and stops blinking any lights. The tray does not automatically eject. This is repeatable and consistent. The OS reports the USB device is connected but MakeMKV reports no usable optical drives.

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Mercury Pro Optical:

  Product ID:	0xde2c
  Vendor ID:	0x1e91
  Version:	1.00
  Serial Number:	002933012615
  Speed:	Up to 5 Gb/s
  Manufacturer:	Other World Computing
  Location ID:	0x00700000 / 13
  Current Available (mA):	900
  Current Required (mA):	0
  Extra Operating Current (mA):	0

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MakeMKV v1.16.3 darwin(x64-release) started
The program can't find any usable optical drives.

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» sudo ./sdftool --list
Found 0 drives(s)

If I attempt to power-on the external enclosure with the tray empty, it appears to power on correctly and MakeMKV is able to detect it.

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MakeMKV v1.16.3 darwin(x64-release) started
Optical drive "BD-RE HL-DT-ST BD-RE WH16NS40 1.05d" opened in OS access mode.

Drive Information
Manufacturer: HL-DT-ST
Product: BD-RE WH16NS40
Revision: 1.05
Serial number: KLIJ8Q83155
Firmware date: 2120-05-06 14:40
Bus encryption flags: 17
Highest AACS version: 76

LibreDrive Information
Status: Enabled
Drive platform: MT1959
Firmware type: Patched (microcode access re-enabled)
Firmware version: 1.05
DVD all regions: Yes
BD raw data read: Yes
BD raw metadata read: Yes
Unrestricted read speed: Yes

Disc Information
Disc is being loaded

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» sudo ./sdftool --list
Found 1 drives(s)
DEBUG: code=00000000 src=1@v]~"'&NQRffK@zW.l;."W\Q:29395149
DEBUG: code=00000000 src=1@v]~"'&NQRffK@zW.l;."W\Q:29395149
00: /IOBDServices/D308F1C6
  HL-DT-ST_BD-RE__WH16NS40_1.05_212005061440_KLIJ8Q83155

However, when I only later insert a DVD inside the tray, the drink blinks blue and produces some spinning noises for 30 seconds until it ejects the tray. The same applies if I later insert a Blue-ray inside the tray except that case takes 50 seconds until it ejects the ray. Both are repeatable and consistent.

The only event that I can think of that could have had an impact on this drive would be an OS update from macOS Catalina 10.15.6 to macOS Catalina 10.15.7 (19H1217) but I would expect more users to be complaining of this issue if that were the cause.

What could have gone wrong? Any recommendations other than trashing it and buying a new drive?