The plugs of CDJs and everything else with 2 prongs are polarized so they only go in one way. Also, anything with 2 prongs is also most likely designed with a floating ground (too much to explain but enough info is out there to get a better understanding.) Take a look at the hot/neutral prongs on the AC adapter of your laptop; same size. If you remove that third prong and/or plug in the plug into the socket the wrong way (not saying you will, but it can happen) you risk your personal safety as well as your laptop (i.e. shock and fire.) Even more risky, if your casing of the laptop is some sort of metal.

Short answer: Don't do it. You risk your personal safety, the laptop itself, and the surrounding gear you use with it.


the more you know :)

The OP is located in the UK. The prongs are the same on either side, 220V not 120V like North America. He gets 120V on each of the prongs, one is not neutral.
That being said, I would not recommend removing the ground. It's there for a reason. Electronics don't take voltage fluctuations very well. The AC voltage is converted to DC voltage. The ground helps to regulate that voltage. You could be in a world of hurt if that voltage fluctuates suddenly and drastically. You could fry circuit boards suddenly, or put a serious strain on them and overheat components over time.
The personal safety as mentioned above still applies. If there is no path to ground for the voltage to dissipate, you become that path as soon as you you touch the laptop (especially with a metal case, aluminum is a good conductor).
Correct me if I'm wrong, but there is no ground prong on the European style plugs, right?
If you are having grounding issues, look elsewhere. Make sure all of your other grounds are clean and tight.
Can you post some pics of which ground prong you mean. I would bet that the CDJ are grounded somehow.
I would not remove any type of ground.

I have done so with my old HP laptop... I know its not reccomended to do so.. I had no problems after doing so.. Ground loop was gone!

Good catch Dj Vee. Didn't know he was in the UK.

Ground Loops - What they mean to DJs, and how to deal with them

Watchwww.youtube.com

Ground loops are often cured by best practices, as explained in RaneNote 110 www.rane.com

Wattage permitting, try plugging all your gear in to one power strip.

If you're hooking your mixer/controller to the house PA, an isolator as in the video may be your only choice.

Do not follow the video's advice to Y two mixers to one amp via a ground loop isolator. More, see RaneNote 109 Why Not Wye?

I agree with everyone; Don't disconnect your ground(earth) pin.

buy a mac I had a hp that had a ground loop problem after i bought my mac it was instantly gone. I used one of those 2 prong adapters on my hp.