Check mac dvd drive10/31/2023 ![]() ![]() On the contrary, those 4K UHD drives that do not allow DVDFab UHD Copy and UHD Ripper to read disc data and finish backup tasks are called unfriendly 4K UHD drives. ![]() However, with respect to DVDFab users, UHD Friendly Drives mean those 4K UHD drives that allow backup software like DVDFab UHD Copy and UHD Ripper to read data from UHD discs and proceed with follow-up backup tasks. Another external 4K UHD drive, LG BE16NU50, also called USB drive, is highly recommended to read UHD disc data. ![]() Therefore, a LibreDrive will never refuse to read data from the disc or declare itself ‘revoked’. Typical example is LibreDrive, an optical disc drive (applicable to DVD, Blu-ray and UHD) intended for accessing disc data directly without any restrictions or transformations enforced by drive firmware. Though unable to be used with official software, such 4K UHD drives allow any software with a regular AACS1 host certificate to read UHD disc data. Obviously you'll need to massage it in order to isolate that part into something you can use, but I think that this code will be a useful starting point.Normally, Friendly 4K UHD Drives refer to regular Blu-ray drives that can read BDXL media but do not implement AACS2 protection. I ran this on my Macbook Pro and the result was as expected. Printf("number of region changes left: %hhu\n", DVDInfo.numberUserResets) Printf("drive region %#hhx\n", DVDInfo.driveRegion) ProcessCDB(task, cdb, 12, DirIn, &DVDInfo, sizeof(DVDInfo), 30000) More specifically, the interesting case is the one where the disk name isn't found (because there's no disk mounted) and a SCSI command is used to find out the DVD drive's properties (the printf calls are my addition): task = (*scsitaskinterface)->CreateSCSITask(scsitaskinterface) Looking at it I found that the ScanAll method in Region X.m is what you need. Region X is more interesting because although it doesn't directly serve your purpose, its source is available. DVD Info X will display the region code of your drive without requiring to have a DVD inserted. I found some utilities that are capable of dealing with DVD region settings on OS X: DVD Info X, and Region X. ![]()
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