ARRL's Hands-On Radio Experiments Volume 3 – Basic Electronics Experiments from QST

XRTFORE External 4k Blu Ray Drive for Pc,Portable 4k UHD Blu Ray Player,SD/TF Port with Carry Case, US8 3.0 HD Blu-Ray Player,DVD+/-RW External Optical Drive for MacBook Pro Windows Laptop

Sony UBP-X700U 4K Ultra HD Home Theater Blu-ray DVD Player 4K upscaling, HDR10, Hi Res Audio, Dolby Digital TrueHD/DTS, Dolby Vision, with Included HDMI Cable, 2025 Model

4K Ultra HD) (+ Blu-ray 2D)

Argo (4K UHD + Blu-ray)

Panasonic Premium 4K Blu Ray Player, UHD DVD Blu Ray Player with Hi-Res Sound, 4K VOD Streaming, HDR10+ and Dolby Vision™, DP-UB450 (Black)

Elf (4K Ultra HD + Blu-ray) [4K UHD]

archgon Premium Aluminum External USB 3.0 UHD 4K Blu-Ray Writer Super Drive for PC and Mac

Panasonic Streaming 4K Blu Ray Player with Dolby Vision and HDR10+ Ultra HD Premium Video Playback, Hi-Res Audio, Voice Assist - DP-UB820-K (Black)