Apparently there really are such devices: Sep 28 20:05:42 localhost kernel: scsi4 : SCSI emulation for USB Mass Storage devices Sep 28 20:05:42 localhost kernel: Vendor: Sandisk Model: ImageMate SDDR09 Rev: 0100 Sep 28 20:05:42 localhost kernel: Type: Direct-Access ANSI SCSI revision: 02 Sep 28 20:05:51 localhost kernel: sddr09: Found Flash card, ID = 98 EA 00 00: Manuf. Toshiba, 2 MB Sep 28 20:05:51 localhost kernel: SCSI device sdd: 8160 256-byte hdwr sectors (2 MB) Sep 28 20:05:51 localhost kernel: sdd: test WP failed, assume Write Enabled Sep 28 20:05:51 localhost kernel: sdd: assuming drive cache: write through Sep 28 20:05:51 localhost kernel: sdd:SCSI error : <4 0 0 0> return code = 0x10070000 Sep 28 20:05:51 localhost kernel: end_request: I/O error, dev sdd, sector 0 Sep 28 20:05:51 localhost kernel: Buffer I/O error on device sdd, logical block 0 Last three lines just repeat over and over. - To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html