1. Open XBC
DID OKAY2. Go to drive tools, hit unlock drive twice until it reads the full size of the disc.
DID OKAY, disc initially was 5.5 and once unlocked goes to 6.813. go to read select current partition
DID OKAY4. hit start, wait for it to copy.
DID OKAY5. go to drive tools, extract the ss, pfi, and dmi.
DID OKAY6 open schtrom xtract, insert any xbox 360 game, under task choose video.iso, and extract to the same folder as your crackdown files.
DID OKAY7. In this folder, you should have (naming is important) a game.iso, video.iso, SS, PFI, and DMI.
DID OKAY8. Make an identical copy of this folder.
DID OKAY9 Open SS merger
DID OKAY10. choose the iso, ss, pfi, and dmi from folder 1. select "add video partition" choose "insert iso" leave fixes checked.
DID OKAY11. check/uncheck nme compatibility as needed.
Left unchecked, have flashed drive12. hit the "merge and create layer break" button (File->Merge does not work)
DID OKAY13. window pops up, choose game.iso from folder 2 (or else it may give you a file in use error)
DID OKAY14. Now open imgburn, set layer break to 1913760, burn at 2.4x. If your making a backup for the nme360, make sure it is exactly 7.705.657.344 bytes
DID OKAYAfter 3 coasters, i'm a little pissed! Something is not going right. My original back up .iso file is 7.3GB, when i use SS Merger, the iso left in folder 2 is only 7.13 , and the .iso in folder 1 increases size to 7.6?

?
I've burnt both .iso, i know my media is fine Verbatin, my drive is bitset and i've done 2 other 360 games after these coasters that have played fine.
What am i missing, anyone else have a more detailed instructions? And YES, i've tried this on 2 different copies of Crackdown, with same results. All .iso files, don't come close the size suggested they should in this thread