I wasn't saying it wasn't done, just that I haven't seen it done, and wondered if it was, or why not.
I also know that all it would take would be changing the d-sigs. I even know that the D-sig may be dynamic for each game, either based off an MD5 checksum, game ID, or programmed into each game itself, possibly.
I know quite a bit about computers, hardware, programming, exc. I'm just new to hacking anything new, except the Wii, so don't know the specifics.
But one thing it didn't sound like I got the question across properly on, based on reaction:
I'm asking why can't a game header on the hard drive be modified WITHOUT hacking the system?
It seem only logical to be able to run a command line with the drive plugged into the PC, to detect and rewrite the header or signature information to make the 360 detect it as a downloaded game, to be booted without the CD key in the disc drive.
My problem is that I can not afford to buy anything new this month, or maybe for 2, so I can not afford to buy solder, a soldering gun, or a pack of DVD+R DLs. I still want to be able to play the games I play the most often without changing discs, scratching or getting them mixed up.
That also leaves buying a optic drive emu out of the question. This is still something that should be easily done if looked into. Even when I have the money, JTag is out of the question. My Dash is already too high a version to use the exploit. Even if I got an older Dash on another system, wouldn't I still have trouble playing some of the newer games that REQUIRE the newer version of the Dash?
Also, from what I understand so far of the RGH, it still requires soldering, right?
Or is there an alternate method now, I can still do, to play these from the HDD?