Hi, Phil, thanks a lot, I got following file burned on CD-R/W but the symptom looks exactly the same. MD5 (boot.iso) = 4ec1babe368e78b84309a04ef44e3e7e -rw------- 1 makoto wheel 4153344 May 12 18:23 boot.iso Thanks always, --- Makoto Fujiwara, Harry is named for Harry Eaton