[crAss]

I have a Cybook Gen3 512MB version loaded with firmware 1.2 (Build 796). I tried the last version of calibre (0.4.129) and it did not recognise my device. The output from the windows_get_devices concerning the cybook is as follows (2 deviced as windows recognizes it, one for the internal memory, one for the SD card):

instance of Win32_DiskDrive
{
	BytesPerSector = 512;
	Capabilities = {3, 4, 7};
	CapabilityDescriptions = {"Random Access", "Supports Writing", "Supports Removable Media"};
	Caption = "Bookeen Cybook Gen3  -FD USB Device";
	ConfigManagerErrorCode = 0;
	ConfigManagerUserConfig = FALSE;
	CreationClassName = "Win32_DiskDrive";
	Description = "Disk drive";
	DeviceID = "\\\\.\\PHYSICALDRIVE3";
	FirmwareRevision = "1.00";
	Index = 3;
	InterfaceType = "USB";
	Manufacturer = "(Standard disk drives)";
	MediaLoaded = TRUE;
	MediaType = "Removable Media";
	Model = "Bookeen Cybook Gen3  -FD USB Device";
	Name = "\\\\.\\PHYSICALDRIVE3";
	Partitions = 1;
	PNPDeviceID = "USBSTOR\\DISK&VEN_BOOKEEN&PROD_CYBOOK_GEN3__-FD&REV_1.00\\080825014206006775&1";
	SectorsPerTrack = 63;
	SerialNumber = "";
	Signature = 381943280;
	Size = "518192640";
	Status = "OK";
	SystemCreationClassName = "Win32_ComputerSystem";
	SystemName = "CRASS-PC";
	TotalCylinders = "63";
	TotalHeads = 255;
	TotalSectors = "1012095";
	TotalTracks = "16065";
	TracksPerCylinder = 255;
};

instance of Win32_DiskDrive
{
	BytesPerSector = 512;
	Capabilities = {3, 4, 7};
	CapabilityDescriptions = {"Random Access", "Supports Writing", "Supports Removable Media"};
	Caption = "Bookeen Cybook Gen3  -SD USB Device";
	ConfigManagerErrorCode = 0;
	ConfigManagerUserConfig = FALSE;
	CreationClassName = "Win32_DiskDrive";
	Description = "Disk drive";
	DeviceID = "\\\\.\\PHYSICALDRIVE2";
	FirmwareRevision = "1.00";
	Index = 2;
	InterfaceType = "USB";
	Manufacturer = "(Standard disk drives)";
	MediaLoaded = TRUE;
	MediaType = "Removable Media";
	Model = "Bookeen Cybook Gen3  -SD USB Device";
	Name = "\\\\.\\PHYSICALDRIVE2";
	Partitions = 1;
	PNPDeviceID = "USBSTOR\\DISK&VEN_BOOKEEN&PROD_CYBOOK_GEN3__-SD&REV_1.00\\080825014206006775&0";
	SectorsPerTrack = 63;
	SerialNumber = "";
	Signature = 0;
	Size = "1011709440";
	Status = "OK";
	SystemCreationClassName = "Win32_ComputerSystem";
	SystemName = "CRASS-PC";
	TotalCylinders = "123";
	TotalHeads = 255;
	TotalSectors = "1975995";
	TotalTracks = "31365";
	TracksPerCylinder = 255;

Hope this helps in better recognition of the device in the next revisions of the software. Keep up the good work!