We use this at work for random bitcopies of small batches of SD cards for a product we sell. As long as you select the byte-by-byte copy mode on the configuration screen, it has always worked for us. This is a great product for the price.
Verbatim Slimline Blu-Ray DVD CD Writer USB 3.0 - M-Disc Ready | Windows & Mac Compatible | Metallic Black
11 Review
ASUS Lite Portable USB 2.0 Slim 8X DVD Burner +/- Rewriter External Drive, Mac & Windows Compatible, Black (SDRW-08D2S-U/BLK/G/AS)
21 Review
π₯ ASUS BW-16D1HT - High-Speed 16X Blu-ray Burner with M-DISC Support, in Sleek Black
19 Review
Efficient USB Cloning and Erasing with StarTech.com 1:2 Standalone USB Duplicator and Eraser (USBDUP12)
11 Review