Toshiba Symbio™ BDX6400 3D Blu-ray Disc Player ReviewJanuary 8, 2014 By Lawrence D. Devoe, MD Leave a CommentThe Toshiba Symbio™ BDX6400 Blu-ray player is a mighty mite, featuring 4K upscaling, WiFi, 2D, 3D, DVD, and CD playback.