Keep it light, OV, don't freak out. Its NOT a huge problem, you're psyching yourself out man.

You've got a wonderful opportunity here. If she gives you the vid, thank her politely & excuse yourself after a short period of time. Light pleasantries only. If she doesn't in a couple of days, gently remind her when you next see her "hey, did you ever find that vid we were discussing?".

If she does give you the vid, then she's made an effort for you & that's good. Wait a day or so & then mention casually about wanting to discuss it w/her.

Smile lots. Try to stay relaxed, its not life or death. Find someone at work you can find out her name from in a subtle way asap. If there is an older matriarch type in the lab (like me) ask her & she'll help. Try not to ask her friend or peer as it may get back to her.

Actually, if you talk to her again, I think you should just jump her bones right there in the hall. Joking. Have fun.