Path Error Help

[CSL]

Installed calibre on win 2k, it picks up the sony prs 500. However when I try to upload a book I get this error. Im stumped.

Job: **Upload 1 books to device:Microsoft Word - BrigandsMoon.rtf**
**PathError**: Could not create file /Data/media/books/Microsoft_Word_-_BrigandsMoon.rtf_-_CSL_4.pdf. Response code: 0xffffffd7L
**Traceback**:
Traceback (most recent call last):
File "calibre\gui2\device.pyo", line 38, in run
File "calibre\gui2\device.pyo", line 168, in _upload_books
File "calibre\devices\prs500\driver.pyo", line 159, in run_session
File "calibre\devices\prs500\driver.pyo", line 870, in upload_books
File "calibre\devices\prs500\driver.pyo", line 159, in run_session
File "calibre\devices\prs500\driver.pyo", line 688, in put_file
File "calibre\devices\prs500\driver.pyo", line 159, in run_session
File "calibre\devices\prs500\driver.pyo", line 654, in touch
PathError: Could not create file /Data/media/books/Microsoft_Word_-_BrigandsMoon.rtf_-_CSL_4.pdf. Response code: 0xffffffd7L