Mirando mejor el problema, en la ventana de los del ftp aparece:
TYPE I
200 Type set to IMAGE.
PASV
502 pasv is not implemented.
PORT 192,168,0,1,19,65
200 Port command ok.
STOR Pelicula.avi
426 Connection closed , file opening failed.
Transfer Failed!
TYPE A
200 Type set to ASCII.
PASV
502 pasv is not implemented.
PORT 192,168,0,1,19,66
200 Port command ok.
LIST
150 Opening ASCII data connection for ls /E/apps/xbmp2/Playlists/.
226-free disk space under this directory : 5.102.731.264
226 Transfer finished successfully. Data connection closed.
Transfer queue completed
1 File failed to transfer
Algun parametro del FlashFtp.
Un saludo