Today at the BURN-Proof licensed manufacturers list a new drive added Teac CD-W512SB. This is the SCSI version of the CD-W512EB. It supports: 1x, 2x, 4x, 8x, 12x write and 2x, 4x, 10x(HS) re-write. No other info is out about the buffer but we suspect that it will has 4MB.