Return them. If they don't pass mediacheck, you might not be able to complete an install. You could check them on a second computer.
You could try installing from them. You might get lucky and only a couple packages that you aren't going to install might be the bad ones.
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If the install fails, you might end up with an unusable system, until you can get a good set of discs and run second install.
Last edited by ranger_nemo; 10-31-2004 at 03:20 PM.