Fady, first of all majority of peoples on orkut are newbies or confused peoples who are looking for a help, so don't believe what someone is posting their unless it comes from a good source.
1) your first question don't make any sense, if someone copy a original game disc which is protected by a specific protection algo then usually only two types of errors are possible (off-course if you get fail to break the protection properly:
- Either a game will not work
- If it works, then it will gives some problems like hanging etc..
both above errors are due to bad copy/bad protection cracking..
but that sound thing don't make any sense right now, cause according to my info there is no such alogs are in the protection of 360 DVD disc..
Now, according to your second info, all that information is correct..hope that helps and let us know if you if you any more confusion in your mind..
Thanks,