A laser pointer

Hi!
I have a broken BD-ROM from PS3, I don't know what is wrong with it, but now it is really broken (the mainboard I think). So I have now a Blu-Ray laser diode, I already tested it and it does seem to give a red light, really shiny red light and I guess the 3rd options is "the monitor". But by adding 2xAAA batteries I get a light that is more like a LED light (not concentrated, but does give much heat), so that means I need some other parts to make a laser pointer.
Can someone please explain what are these parts and maybe I can make them my own?
I have seen that people put in a "laser driver" or "laser module", but I don't know what are they.
Btw, I have seen that people get a blue light, but I couldn't get a blue light from the laser diode, could it be that the diode is broken? (I didn't add any circuits)

This link should get you going. You should have a laser diode that resembles what you see in the link.

Ron

You don't have the blue-ray laser, you have the DVD laser. The blue-ray laser will be, uh, blue.

Well that makes sense why it is called Blu-Ray... lol
So that means my diode is actually broken, more specifically, the Blu-Ray part.
I'm left with a DVD diode and a CD diode I guess, but still I have a diode, I would like to put it in use.
Now I have "scattered" light, how can I make it a beam?
I read that I need a laser housing module that does that, something like this: Aixiz Laser Module Housing - Blank [Aixiz] - $3.39 : High Tech DealZ, Simplifying the LASER Hobby!
And I need a laser driver that would "save" the diode, something like this(I think): **broken link removed**
So the missing part of my "pointing stick" is the lense, right?

[EDIT] Oh, sorry, my bad, the Blu-Ray works!
I just used not enough power, I used 2xAAA that is 3V, but blu-ray needs 4.5, so I added 12V (lol, but just for one time) and a blue light shine.

You are aware that the light from these can cause eye damage?

Of course, I'm also aware of restrictions about the power of lasers.

In the link I provided they use a 9 Volt battery and 150 Ohm series resistor.

Ron