i was getting a lot os corrupt files... i tried with 2 diferent computers... changed with another windows xp cd, other isos images... but these 2 computers were dual cores... a core2duo and a pentium D... and i put the nlite process to work with only one processor... and it works fine!!! no more corrupt files... then, i test with others cds, and works fine too... and i tested with a single core processor, and works fine... i was getting mad... i've done some nlite customization cds before, and now it wasn't working... but now solved, here... sorry about english... hope have helped people