[Gonzo1961]

I'm having a problem in that Calibre doesn't recognize my PRS-505. It's been happening for maybe four weeks. At first I was just having problems with the SD drive, but could still read/write to the memory stick. Now it won't see neither reader nor the slots. I performed a debug in hopes that anyone could see what the problem is. The reader is being recognized by the computer. And I could still write to the memory stick using Calibre although Calibre doesn't show that the book was transferred. I have to view the stick using windows explorer to verify the book was indeed placed on. Checked the plugin for sony; it was green. Any ideas?

Here is the Debug info:

Version: 0.7.52
USB devices on system:
[u'usb\\root_hub&vid8086&pid265b&rev0003',
u'usb\\root_hub&vid8086&pid265a&rev0003',
u'usb\\root_hub&vid8086&pid2659&rev0003',
u'usb\\root_hub&vid8086&pid2658&rev0003',
u'usb\\root_hub20&vid8086&pid265c&rev0003',
u'usb\\vid_03f0&pid_c602&rev_0100',
u'usb\\vid_03f0&pid_c602&rev_0100&mi_00',
u'usb\\vid_03f0&pid_c602&rev_0100&mi_01',
u'usb\\vid_03f0&pid_c602&rev_0100&mi_02',
u'usb\\vid_0409&pid_0059&rev_0100',
u'usb\\vid_046d&pid_c512&rev_3007',
u'usb\\vid_046d&pid_c512&rev_3007&mi_00',
u'usb\\vid_046d&pid_c512&rev_3007&mi_01',
u'usb\\vid_054c&pid_021f&rev_0341',
u'usb\\vid_054c&pid_031e&rev_031:']
Drives detected:
(0) K:\ ~ \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600&REV_1.00#0800461000C3E89F&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
(1) M:\ ~ \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_MS&REV_1.00#0800461000C3E89F&1#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
(2) O:\ ~ \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_SD&REV_1.00#0800461000C3E89F&2#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
(3) P:\ ~ \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_LAUNCHER&REV_1.00#0800461000C3E89F&3#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
Available plugins: ALEX ALURATEK_COLOR ANDROID ARCHOS7O AVANT AZBOOKA BAMBOOK BLACKBERRY
BOOQ BOOX COOL_ER CYBOOK DBOOK E52 E71X EB511 EB600 EBK52 ECLICTO EDGE
EEEREADER ELONEX ESLICK FOLDER_DEVICE_FOR_CONFIG GEMEI GER2 HANLINV3
HANLINV5 ILIAD INVESBOOK IPAPYRUS IREXDR1000 IREXDR800 IRIVER_STORY
ITALICA ITUNES JETBOOK JETBOOK_MINI KINDLE KINDLE2 KINDLE_DX KOBO
LUMIREAD MENTOR MIBUK N516 N770 N810 NEWSMY NEXTBOOK NOOK NOOK_COLOR
NUUT2 ORIZON PALMPRE PDNOVEL PDNOVEL_KOBO PICO POCKETBOOK301
POCKETBOOK360 POCKETBOOK602 POCKETBOOK701 PRS505 README S60 SHINEBOOK
SNE SOVOS SPECTRA STASH SUNSTECH_EB700 SWEEX TECLAST_K3 THEBOOK
TREKSTOR VELOCITYMICRO WEXLER

Looking for devices...
u'usb\\vid_054c&pid_031e&rev_031:'
No match found in: \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_MS&REV_1.00#0800461000C3E89F&1#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
No match found in: \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_LAUNCHER&REV_1.00#0800461000C3E89F&3#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
No match found in: \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_SONY&PROD_ PRS-600_SD&REV_1.00#0800461000C3E89F&2#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
Detected possible device PRS505

Devices possibly connected: SONY Device Interface,
Trying to open SONY Device Interface ... OK
Main memory: 'K:\\'
Total space: (410689536, 995819520, 2038005760)

Here's the dump when I add a book to the stick:

calibre, version 0.7.52
ERROR: Unhandled exception: <b>AttributeError</b>:'list' object has no attribute 'add_book'

Traceback (most recent call last):
File "site-packages\calibre\gui2\__init__.py", line 250, in dispatch
File "site-packages\calibre\gui2\device.py", line 1241, in books_uploaded
File "site-packages\calibre\gui2\device.py", line 393, in add_books_to_metadata
File "site-packages\calibre\devices\usbms\driver.py", line 301, in add_books_to_metadata
AttributeError: 'list' object has no attribute 'add_book'

Thanks all!