diff --git a/src/calibre/devices/cybook/driver.py b/src/calibre/devices/cybook/driver.py
index 64bd37b196..4e5c1d4f92 100644
--- a/src/calibre/devices/cybook/driver.py
+++ b/src/calibre/devices/cybook/driver.py
@@ -15,6 +15,7 @@ from calibre import fsync
 from calibre.constants import isunix
 from calibre.devices.usbms.driver import USBMS
 import calibre.devices.cybook.t2b as t2b
+import calibre.devices.cybook.t4b as t4b
 
 class CYBOOK(USBMS):
 
@@ -67,12 +68,40 @@ class ORIZON(CYBOOK):
 
     BCD         = [0x319]
 
+    FORMATS     = ['epub', 'html', 'pdf', 'rtf', 'txt']
+
     VENDOR_NAME = ['BOOKEEN', 'LINUX']
     WINDOWS_MAIN_MEM = re.compile(r'(CYBOOK_ORIZON__-FD)|(FILE-STOR_GADGET)')
     WINDOWS_CARD_A_MEM = re.compile('(CYBOOK_ORIZON__-SD)|(FILE-STOR_GADGET)')
 
     EBOOK_DIR_MAIN = EBOOK_DIR_CARD_A = 'Digital Editions'
 
+    EBOOK_DIR_CARD_A = [EBOOK_DIR_CARD_A]
+    EXTRA_CUSTOMIZATION_MESSAGE = [
+        _('Card A folder') + ':::<p>' +
+            _('Enter the folder where the books are to be stored when sent to the '
+              'memory card. This folder is prepended to any send_to_device template') + '</p>',
+    ]
+    EXTRA_CUSTOMIZATION_DEFAULT = EBOOK_DIR_CARD_A
+
+    def upload_cover(self, path, filename, metadata, filepath):
+        coverdata = getattr(metadata, 'thumbnail', None)
+        if coverdata and coverdata[2]:
+            coverdata = coverdata[2]
+        else:
+            coverdata = None
+        with open('%s.thn' % filepath, 'wb') as thnfile:
+            t4b.write_t4b(thnfile, coverdata)
+            fsync(thnfile)
+
+    def post_open_callback(self):
+        opts = self.settings()
+        folder = opts.extra_customization
+        if not folder:
+            folder = ''
+        self.EBOOK_DIR_CARD_A = folder
+        print(folder)
+
     @classmethod
     def can_handle(cls, device_info, debug=False):
         if isunix:
diff --git a/src/calibre/devices/cybook/t4b.py b/src/calibre/devices/cybook/t4b.py
new file mode 100644
index 0000000000..1eddca70df
--- /dev/null
+++ b/src/calibre/devices/cybook/t4b.py
@@ -0,0 +1,42 @@
+__license__   = 'GPL v3'
+__copyright__ = '2013, Jellby <jellby at yahoo.com>'
+'''
+Write a t4b file to disk.
+'''
+
+import StringIO
+
+DEFAULT_T4B_DATA = ''
+
+def reduce_color(c):
+    if (c < 0):
+        return 0
+    elif (c > 255):
+        return 15
+    else:
+        return c//16
+
+def write_t4b(t4bfile, coverdata=None):
+    '''
+    t4bfile is a file handle ready to write binary data to disk.
+    coverdata is a string representation of a JPEG file.
+    '''
+    from PIL import Image
+    if coverdata != None:
+        coverdata = StringIO.StringIO(coverdata)
+        cover = Image.open(coverdata).convert("L")
+        cover.thumbnail((96, 144), Image.ANTIALIAS)
+        t4bcover = Image.new('L', (96, 144), 'white')
+
+        x, y = cover.size
+        t4bcover.paste(cover, ((96-x)/2, (144-y)/2))
+
+        pxs = t4bcover.getdata()
+        t4bfile.write('t4bp')
+        for i in range(0,len(pxs),2):
+            byte = reduce_color(pxs[i])
+            byte = 16*byte + reduce_color(pxs[i+1])
+            t4bfile.write(chr(byte))
+    else:
+        t4bfile.write(DEFAULT_T4B_DATA)
+