DAV DZ-100 problem with reading divx files

Hello everyone. I have a problem with my DAV DZ-100. I bought it 2 years ago, and i never watched divx movies on it. Now, when I want, I can't. When I put CD or DVD with divx files into DAV it shows only a message "Data error - divx". I also tray with firmware update which i downloaded from:

http://support.sony-europe.com/HAV/downloads/downloads.aspx?f=FW_DAV&m=DAV-DZ100&l=en

and i followed all the instructions step by step, but when I put CD with file "hab_ec85.bin" into DAV nothing is happened. It doesn't shows me a screen "Update file detected, press play to start". What I can do now.
Please help me... :-)