Samsung COMBO CDRW DVD BULK, 2 MB, 52x, 32x, 52x, 130 ms, 110 ms Samsung COMBO CDRW DVD BULK. Drive device, buffer size: 2 MB. CD write speed: 52x, CD rewrite speed: 32x. CD read speed: 52x. DVD drive average random access time: 130 ms, Access time: 110 ms. Weight: 750 g