kinterbasdb error connection

[Ale Ghelfi]

(i'm under Ubuntu 10.10 amd64 and python 2.6 and kinterbasdb 3.2 )
I try to connect my database of firebird 2.5 by kinterbasdb.
But python return this error :

 >>> c = 
kinterbasdb.connect(dsn="/media/VINACCIA.FDB",user="user",password="password",charset="UTF-8")
Traceback (most recent call last):
   File "<pyshell#22>", line 1, in <module>
     c = 
kinterbasdb.connect(dsn="/media/VINACCIA.FDB",user="user",password="password",charset="UTF-8")
   File "/usr/lib/pymodules/python2.6/kinterbasdb/__init__.py", line 
435, in connect
     return Connection(*args, **keywords_args)
   File "/usr/lib/pymodules/python2.6/kinterbasdb/__init__.py", line 
612, in __init__
     b.dsn, b.dpb, b.dialect, timeout
OperationalError: (-902, 'isc_attach_database: \n  I/O error during 
"open" operation for file "/media/VINACCIA.FDB"\n  Error while trying to 
open file\n  Permission denied')

By terminal of Ubuntu this is the permission of database:
$ls -l /media/VINACCIA.FDB
-rw-r--r-- 1 grappale grappale 1720320 2010-12-06 17:33 /media/VINACCIA.FDB

Where am i wrong? Please. Thank you!