SergeyVolynkin

You are right. The cluster size must be a multiple of the physical sector size. I have tried to describe the role of file system for AF-disks at http://diskat.net/background-en.html I think the possibility of formatting with small cluster on Win7 will be eliminated in some update. BTW, have you SP1 or http://support.microsoft.com/kb/982018 on your Win7 ?

Actually this is most probably correct. The USB protocol prevents some "data structures" to "pass through". As an example, try accessing an hard disk with Victoria for windows when it is directly connected to the MB (Pata or Sata) and when it is connected through a USB adapter/external case. It depends on conrete model of USB/ATA bridge. Most modern bridges allow pass-through in standard way. In this case the SMART and IDENTIFY data are available for great number of software. But some models don't support pass-through at all. Others allow only vendor-specific commands.

Hi, the information about the physical sector comes with ATA IDENTIFY command reply for ATA devices and READ CAPACITY (16) for SCSI ones.