Lite-on & Hitatchi read errors

hey all

ive recently come onto the xbox flashing scene and with jungle flasher it all seems pretty easy, even the lite-on ones .

Anyway i have flashed 3 drives so far, BenQ, Lite-on and Hitatchi (47 verison) and all were successful. How ever the problem lies with the Hitatchi and lite-on drives they are orquad at playing backups, some work and some don't but all work in the BenQ drive (all games that dont work on the hitatchi don't work on the lite-on either).

all the games have been passed with agbx and the media im using is Verbatim (2.4x).

its a strange little problem and im hope all you genius folk will help me find out whats up.

So my question is, how come all games work on the BenQ drive but not the lite-on or hitatchi drives?

any help is apprecitated
0dan-dan0