As title says, I can't see anything that says you can or can't, so I'm assuming you can't.
However, if corp has had to discard from HQ, can they never look at the card again?
If archived memories is played, they can then look at all cards in archives before choosing right? Or can they indeed look before it's played?
If you can, please can you reference the rule as I can't find it =(
Thanks in advance.