This may not be your only problem, but it probably is one of them. You're trying to *read* from your memory stick here, not write to it. If you want to blank the memory stick, you need to use the prior command:dd if=/dev/zero of=/dev/sdb
Andrew, Just wanted to backup the mbr before overwriting it. dd of=/dev/sdb gives the same error message. Klaus --To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]