call of duty 4 error message when installing...

[stefdj]

hi
can anyone help ?
i get this message at the beginning of installation.
error1305. error reading from file e:\setup\data\mods\modwarfare\7za.exe
verify that the file exists and that you can access it.
the file is on the dvd and i burned the image file at low speed
the dvd is a ridata dvd-r dl 4x
i burned it twice and i gat the same results on both disks

thank you for replying