I agree with Elf, it's not the seller's fault if disc has scratches, unless the scratches affect the playability of the disc.
just to share some experience here's my list:
1. Dead Ringers Criterion - Intact in the hub but when i flip it, had some minor scratches.
2. Snow white Platinum - scratches in disc one Intact in the hub
3. Kurosawa boxset - all 3 disc have scratches and it ain't minor(kala mo previous rental yung mga disc) but i was lucky all three films has no problem playing - I think this is norm for this set.
4. Harry Potter SS - I was lucky with this one the seller replaced it (thanks to you sir)
5. B-O-B - all disc's are intact but disc one has 3 to 5 minor scratches- and im not yet finish viewing it
6. Rambo trilogy - Special feature disc has some minor scratches(slight pause on some part of it) and thanks again to the seller for the replacement disc
7. Insomnia Criterion
8. Die Hard trilogy UE - unlike blitz's, mine all disc one has scratches
I'll update my list aalalanin ko muna yung iba.