When i 1st got my 360 i was playin my 360 and PDZ alot of my good friends were over and the 360 the standin VERTICALLY so they tell me "yeah the light ring switches side if u change the way the 360 is put" so i say okai cool let me try it so i change it and there is a huge noise so i try to load one of the CAMPAIGN maps and bam a pop up comes up THERE IS SUMTHING WRONG WITH UR DISC DAMAGED or DIRTY...so i take out my disc and there is a big ring of SCRATCHES...so it damaged my disc and i cant load mission 3 and 4 of campaign...SUKXX
here is a video of what happends
So you put your 360 on it's "belly" while it was running? Lol, moron. J/k, Whistlerman's right, it's like the same thing that happens with every other console.
If you move it so it bumps or gets hit really hard, it'll fuck up whatevers playing, causeing it to freeze or not being able to run (it happened with my N64 when my bro moved it while I was playing LoZ)
It says you shouldnīt tilt the xbox 360 in the instruction book you get with your xbox 360 box. So if you havenīt read anything online you still could have read the instructions. Sad though.
thats the same thing that happened to my friend. he played with his standing up and he couldn't load missions 7 when we were playing co-op.
ever since i got my ps2 way back when i was hesitant about standing it up because it didnt feel right puttting the disk vertical when it should be read horizontally.
and changing positions in the middle of playing wasn't the smartest thing you could have done. i guess it wasn't your 360 that messed up your pdz it was YOU
My 360 Messed Up My Pdz !!! 
Linear Mode
