LG Electronics Super Multi Portable 8x External DVD Rewriter with M-DISC Support GP30NB40 Interface: USB 2.0 Buffer Capacity: 1.5MB DVD-ROM:11.08 Mb/s (8x) max CD-ROM: 3,600 Kb/s (24x) max Supported Discs: DVD-ROM (SL/DL), DVD-AR (SL/DL), DVD-ARW, DVD-RAM, M-DISC, CD-R/R with ROM, CD-DA, Video CD