Each time I tried to write a cd (copy a cd or write data from my hard disk), Nero gave me a "Communication failure" message. I tried to change my cd -writer from udma mode to pio mode, but the buffer empties very fast. Then I changed it back to udma mode and I noticed that the error message appears now only when I copy a cd, and not when I write data from my hard disk. Can anyone tell me why does this error appear and what can I do to fix it? I have Windows 2000 professional, via kt333 chipset on my mainboard and Teac cd-w540e cd-writer. Thank you for your help.