I’ve already tried burning at the lowest speed possible (1X) and with different media without luck. I’ve also thought about the CDWriter firmware thing (Yamaha CDRW-2100EZ, firmware 1.0k), but the weird thing is that the previous version of CloneCD I had (which eventually failed) worked fine the first times I used it. Another possibility is some software conflicts, since the previous Clone CD was the second CD burning software I installed (the first one was a light version of Easy CD Creator which came as a bundle with the CDWriter-Idon’t recall exactly which version it was, but it wasn’t the one I have now-). After that, I installed CDRWIN, DISKJUGGLER, EASY CD 5.0 PLATINUM. I don’t recall exactly when CloneCD began failing, but I’m sure it worked fine at some time. Nevertheless the exact failure message (perhaps this will help somebody determining where the problem lies) is:“Writing To CD Failed, HARDWARE ERROR: NO ADDITIONAL SENSE INFORMATION (4:0X08:0X03)”.