How can I get screencaps from a DVD without putting the disc in the DVD-ROM drive?

Because my drive went caput and I can't afford a new one.

I'll read any các câu trả lời bạn can give me, hoặc any đường dẫn that bạn think might help, no matter how complicated, ridiculous, hoặc expensive the solution might be. (Hey, I đã đưa ý kiến I'd read them. I didn't say I'd try them all.) But don't say to take a picture of the TV screen. I've tried it. It doesn't work. (Yes, I've gotten that desperate.)