i'd say your DVD drive is loosing track after a while ... so an option would be to copy the files from the DVD to your harddisk ... but allow some time between the DVDs and/or files ... otherwise it will only appear the files are copied ok (no CRC error message will appear)
then run the install from the location on the harddisk (to which you have copied the files) ... possibly again the installer reports *couldn't read - file corrupt* ... look into the installer window at which .cab-file the installer stopped ... copy again this .cab-file from the DVD to the harddisk (the finder will ask you *overwrite yes/no* and of course you like to overwrite ... restart the installation then.
please consider most DVDs are double layer and are holding a huge amount of data. if your DVD shows significant scratches (what of course could happen, but is not very probable) the DVD itself might be the problem - otherwise it is your drive or RAM.
unfortunately this rather ocurres with large files/installs and you won't notice it probly when reading some CD or less data.
christian
then run the install from the location on the harddisk (to which you have copied the files) ... possibly again the installer reports *couldn't read - file corrupt* ... look into the installer window at which .cab-file the installer stopped ... copy again this .cab-file from the DVD to the harddisk (the finder will ask you *overwrite yes/no* and of course you like to overwrite ... restart the installation then.
please consider most DVDs are double layer and are holding a huge amount of data. if your DVD shows significant scratches (what of course could happen, but is not very probable) the DVD itself might be the problem - otherwise it is your drive or RAM.
unfortunately this rather ocurres with large files/installs and you won't notice it probly when reading some CD or less data.
christian
and remember: only a CRAY can run an endless loop in just three seconds.