Wah, it is really tempting~

Modded console requires higher reading rate to avoid any lag during game play. That's why you experience the noise. In addition to it, you will find there is disc to disc variation in the noise level which depends on the disc quality. The spinning sound is considerably irritating. Some people may have thought that it is acceptable but some of them may not. Just get a HDD and install the game into it to eliminate the noise. I am happy with my 120GB (self upgraded version from 20GB) which the noise is totally eliminated. I am also one of them who gets irritated easily by the spinning noise.

Literally, you should know there is difference between original and jack sparrow disc. The price is so much different as well. You shouldn't compare a original disc to a pirated disc.