Need for Speed SHIFT (DVD9 to 1xDVD5)

[mongrel]

Originally Posted by Joe Forster/STA

Apply a patch (-d for decode) called "NFSS.dlt" (first filename = input) to "autorun.dat" (value of -s for source, not a stand-alone filename!), resulting in "autorun patched.dat" (last filename = output) which is to be overwritten (-f for force overwrite), and be verbose (-v for verbose) about the process.

Thanks for clearing it out...but I still have doubts.
So, here, does the command decode "autorun.dat" or "nfss.dlt" ??
the source is "autorun.dat", i guess ??
what is the need to force overwrite the file, can't we just write it?
What is a .dlt file and how do we create it?