This is the only inexpensive and reliable solution I could find with more than two duplicates. It even transfers boot disks. I took it out of the box and ran the first two groups. Each tested exactly as expected. I was concerned that it doesn't have a PC interface. No problem! Simple, fast and reliable. And it doesn't feel cheap. The next viable fix cost over $500 and it only got worse from there.
RLSOCO Carrying Case for External USB CD DVD Burner Writer, Blu-Ray Drive - Fits LG Electronics 8X, Dell DW316, ROOFULL, VersionTech, Apple USB Superdrive, ASUS, VicTsing, KINDEN, and More
12 Review
Verbatim Slimline Blu-Ray DVD CD Writer USB 3.0 - M-Disc Ready | Windows & Mac Compatible | Metallic Black
11 Review
π₯ ASUS BW-16D1HT - High-Speed 16X Blu-ray Burner with M-DISC Support, in Sleek Black
19 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
Fractal Design Node 304 - Black - Mini Cube Compact Computer Case - Small Form Factor - Mini ITX β mITX - Enhanced Airflow - Modular Interior - Includes 3x Fractal Design Silent R2 120mm Fans - USB 3.0
42 Review
Fractal Design Define R5 - ATX Mid Tower Computer Case - High Airflow and Silent Optimized - Includes 2x Dynamix GP-14 140mm Silent Fans - Water-Cooling Ready - Black
43 Review
MasterBox Q300L Micro-ATX Tower with Magnetic Dust Filter, Acrylic Side Panel, Adjustable I/O & Ventilated Airflow, in Black
40 Review
Zalman Z3 M ATX π» Tower Computer: A Compact and Powerful Machine
77 Review