I was trying to buying an Xbox with a good drive that's why I post this thread. Anyway after work I picked a Xbox and saw the tray has two holds on the left and right sides of the U shape hold in the center. That's why I want to confirm if it's a Samsung or it could still be some other drive. But based on what you guys said it seems that it is a Samsung. Thanks for everyone's help.
However, I just went to my friends house today and see if her's is also with a Samsung and it is, it has two holes on the tray also. And it's a Halo Green version! Then I compare the serial on the back, it seems that doesn't matter what date it is produced, but rather if the print of the Serial# sticker has skinny font then it's likely a Samsung drive. If it's like a bigger or fatter font then it may not be a Samsung drive. But I don't know how to tell from a Thomson or Phillip.
Anyway Phillips is good but I heard that my friends have Phillips have problem loading some type of CDR. Just my 2 cents...
Hope you guys don't get mad on what I said!