if burning Ricoh +RW 8x media (RICOHJPN-W21-001) with my 111D, the drive's buffer is jumping up and down and the burning speed is very slow. The drive is in external enclosure (Trust USB2 DVD-RW Case 5.25'' CA-2100). However, burn process is normal with any other dvd or cd media, the problem occurs only with this ricoh media (i have two of them, both are problematic). This problem occurred very suddenly by the way, yesterday all was normal. I tried different TDB's firmwares... nothing changed. Then flashed back to official 1.29. still nothing changed. What to do?