Problem installing Debian woody

[D.H]

Hi all,     I have tried to install Debian woody on my box for about 3 times(I downloaded all the 7 ISO image files and burn them on CD), but every time i got the same error when installing "diald" package, luckly, it doesn't interrupt the whole installation process. The error message says something about "dpkg returns (-1) when reading diald_0.99.4-5_i386.deb", I am sure that this was not because of "Module dependency", someone tell me maybe it was caused by the bad CD media, but there is no error occured during buring process.I am puzzled now, anyone can help me ?    Thanks in Advance.