Typically, a UHD drive is an optical or external Blu-ray drive that can read BDXL media. To identify it from other drives, UHD drives are usually labeled with 'Ultra HD Blu-ray' or something similar. In general, there are two types of UHD drives, namely the 'friendly' and 'unfriendly' 4K UHD drives.
The 'friendly' drives can read regular BDXL media without implementing AACS2 protection, while the 'unfriendly' drives implement the AACS2 protection. What that means is the 'unfriendly' drives may not grant you permission to copy or backup, and in some instances even to watch the UHD content. In contrast, friendly UHD drives can skip executing the AACS 2.0 rules, instead, they execute the AACS 1.0 rules, which allows users to decrypt and read them according to personal needs.
The current firmware revision of the 'unfriendly' UHD drive prevents any third-party tools to copy or rip contents from UHD disc for backup purposes. In this scenario, people usually tend to update the firmware to make it a 'friendly' drive. Despite referring to the official guide, some accidents may appear during the update process, such as damaging the drive permanently or voiding the warranty. Hence, the best way to read data from UHD discs is downgrading the firmware to compatible version so as to copy, rip specific contents upon UHD discs. To flash the firmware flawlessly, people can trust Leawo UHD Drive Tool, a flexible gadget to downgrade UHD-unfriendly firmware on Blu-ray drive to a compatible version, and make copying/ripping/watching UHD disc possible in Leawo UHD Copy, Leawo UHD Ripper and Leawo Free Blu-ray Player respectively.
|LG BU40N(Buffalo/hp HLDS BDRE BU40N)(Official)||Tested|
|LG BU50N(hp HLDS BU50N)(Official)||Tested|
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|Archgon MD-8107S-U3-UHD BU40N(Official)|
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