Rubicant: I don't want to sound rude, but where were your disc lying? On the floor??? Well, why not try a seek at WinMX or Grokster?? The chances that you will find a workin' version isn't too high, but it's worthy a try.
What you also could try is to write a letter to Square and tell them you've bought FF7 Platinum Edition a few days ago and when you opened the box, you saw that the install disc was broken. Most probably they will send you a disc w/o asking for the broken one.
This idea might sound stupid, but it works. Kaoru has bought Jedi Knight (I) and both disc were okay. However, one day we wanted to get the disc out of its box and -cracks- it was broken. He has sent a letter to the Support Center of LucasArts, and they've send him a new disc. So this *might* work - you've got nothing to lose if you have got the original discs.
- Alhexx