So has anyone found a way to decrypt the ISO so that the file is only the data needed for the game? Or are we always going to be stuck with 4+ GB files, no matter how much data the game actually uses? Maybe there already is and I'm just missing something, but I've yet to see a Wii game under 4 gigs, so it got me wondering.
Hacking Will Wii dumps always be over 4 GB?
- Thread starter sabinraijin
- Start date
- Views 1,816
- Replies 12
- Joined
- Oct 31, 2006
- Messages
- 2,421
- Trophies
- 0
- Age
- 36
- Location
- South East London
- Website
- www.gbatemp.net
- XP
- 571
- Country
Untill we can run unsigned code they'll always be over 4gig, If we rip stuff from the wii games im pretty sure we'll break the encryption and the wii wont reconigize the disk, Gamecube games wernt encrypted is why we can rip the garbage data from them.
yep jaxxster is right, if you alter the current images in anyway they wont play on current modchips!
maybe one day that will change, but yeah its annoying when you think garbage data could realistically be 3+ gigs
maybe one day that will change, but yeah its annoying when you think garbage data could realistically be 3+ gigs
QUOTE said:
Well not necasarily, being able to run unsigned code will allow booting of shrunken isos sure, but that doesent stop the distrubtion of smaller sized isos which will be possible once the actual disc fomat of a wii disk is broken and understood, taking out the padding from these images will result in the smaller sizes which can be distributed and then rebuilt with an appropiate tool which would result from the understanding of the disc structure and then just burnt back to disk. Hopefuly this will happen sometime soon.
Ah, I see, so the Wii looks for all the data to be there, even garbage data that's just there to fill the DVD. Weak.
Well, as long as there's even a small chance it will be amended in the future, I'm happy. Pain in the ass to do this stuff with 768k DSL >_
Well, as long as there's even a small chance it will be amended in the future, I'm happy. Pain in the ass to do this stuff with 768k DSL >_
Here are my ignorant thoughts:
If ripping out data really doesn't work, the Wii must be looking in a few places and expecting a certain bit of data. So the size of the game must be written somewhere. To get around this, I guess you could:[*] Find out how much game data there is, rip out the padding, then write a program to recreate the padding before burning.[*] Change the size field to take up nearly the whole disc, pad the ISO with zeros (or something easily compressible), and leave the last 512KB of original padding at the end. Then you'd have a modified game disc, but you wouldn't have to break the padding encoding. Maybe.Anyone want to try either of these?
If ripping out data really doesn't work, the Wii must be looking in a few places and expecting a certain bit of data. So the size of the game must be written somewhere. To get around this, I guess you could:[*] Find out how much game data there is, rip out the padding, then write a program to recreate the padding before burning.[*] Change the size field to take up nearly the whole disc, pad the ISO with zeros (or something easily compressible), and leave the last 512KB of original padding at the end. Then you'd have a modified game disc, but you wouldn't have to break the padding encoding. Maybe.Anyone want to try either of these?
So, even if you change one bit in the ISO, say at 3.5 GB, the game won't work? That doesn't make any sense.
- Joined
- Feb 10, 2006
- Messages
- 528
- Trophies
- 1
- Age
- 39
- Location
- San Diego, CA
- Website
- Visit site
- XP
- 231
- Country
The Wii can't be reading the whole disc all the time, can it? That would take forever.
- Joined
- Feb 10, 2006
- Messages
- 528
- Trophies
- 1
- Age
- 39
- Location
- San Diego, CA
- Website
- Visit site
- XP
- 231
- Country
My best guess would be that changing something in the game image (ISO) would change a checksum, and if it isn't what it should be, then it won't work.
It would still need to actually read the whole disk to check the checksum, if you're following me.
Similar threads
-
-
-
-
-
-
-
-
-
-
@
TwoSpikedHands:
yall im torn... ive been hacking away at tales of phantasia GBA (the USA version) and have so many documents of reverse engineering i've done -
@
TwoSpikedHands:
I just found out that the EU version is better in literally every way, better sound quality, better lighting, and there's even a patch someone made to make the text look nicer
-
@
TwoSpikedHands:
Do I restart now using what i've learned on the EU version since it's a better overall experience? or do I continue with the US version since that is what ive been using, and if someone decides to play my hack, it would most likely be that version?
-
@
Sicklyboy:
@TwoSpikedHands, I'll preface this with the fact that I know nothing about the game, but, I think it depends on what your goals are. Are you trying to make a definitive version of the game? You may want to refocus your efforts on the EU version then. Or, are you trying to make a better US version? In which case, the only way to make a better US version is to keep on plugging away at that one
-
@
Sicklyboy:
I'm not familiar with the technicalities of the differences between the two versions, but I'm wondering if at least some of those differences are things that you could port over to the US version in your patch without having to include copyrighted assets from the EU version
-
@
TwoSpikedHands:
@Sicklyboy I am wanting to fully change the game and bend it to my will lol. I would like to eventually have the ability to add more characters, enemies, even have a completely different story if i wanted. I already have the ability to change the tilemaps in the US version, so I can basically make my own map and warp to it in game - so I'm pretty far into it!
-
@
TwoSpikedHands:
I really would like to make a hack that I would enjoy playing, and maybe other people would too. swapping to the EU version would also mean my US friends could not legally play it
-
@
TwoSpikedHands:
I am definitely considering porting over some of the EU features without using the actual ROM itself, tbh that would probably be the best way to go about it... but i'm sad that the voice acting is so.... not good on the US version. May not be a way around that though
-
-
@
The Real Jdbye:
@TwoSpikedHands just switch, all the knowledge you learned still applies and most of the code and assets should be the same anyway -
@
The Real Jdbye:
and realistically they wouldn't
be able to play it legally anyway since they need a ROM and they probably don't have the means to dump it themselves -
-
-
-
-
@
Karma177:
do y'all think having an sd card that has a write speed of 700kb/s is a bad idea?
trying to restore emunand rn but it's taking ages... (also when I finished the first time hekate decided to delete all my fucking files
)
