[xubuntu] Problems with booting installation CD

I've been making a certain number of attempts on installing Xubuntu on my computer. I've burned several DVD's and even tried USB-installer but I get nowhere. The problem remains the same. Whenever I boot from a DVD I get to choose whether I want to try Xubuntu or install it. Same thing happens regardless of what I click, and what happens is that the DVD spins up again and you see a little cursor flashing in top left, and there is stops. I've waited for it, took a walk, made some food, watched some TV, but nothing happens.
Is there anything I could do in the BIOS? I read in this thread (Asus ROG forums) that I could set "acpi=off", but have no clue what that is.

I believe I tried this with Ubuntu aswell, so regardless of which version I'm installing the problem remains the same.

Thanks
-Kaffe