just compress your gdi image using 7zip (it's free), most of my image got reduced to almost 30% original size. for example, my skies of arcadia both disc that almost 2.4 GB, now only take less than 800 MB on haddrive.
sice its in 7zip archieve format, it won't be playable, but you only need to extract it back to use it with nullDC
this way, you'll get your image exactly the same with your disc (that you dumped), if i'm not mistaken dummy file also had it use (don't wally know what exactly)

 

just compress your gdi image using 7zip (it's free), most of my image got reduced to almost 30% original size. for example, my skies of arcadia both disc that almost 2.4 GB, now only take less than 800 MB on haddrive.
sice its in 7zip archieve format, it won't be playable, but you only need to extract it back to use it with nullDC
this way, you'll get your image exactly the same with your disc (that you dumped), if i'm not mistaken dummy file also had it use (don't wally know what exactly)

 

just compress your gdi image using 7zip (it's free), most of my image got reduced to almost 30% original size. for example, my skies of arcadia both disc that almost 2.4 GB, now only take less than 800 MB on haddrive.
sice its in 7zip archieve format, it won't be playable, but you only need to extract it back to use it with nullDC

That would defeat the purpose.

 

the dummy file was put there to push the date to the outside of the disc where it would move past the laser faster then if it were in the inside tracks. since it's not on a disk anymore is is totally useless.

 

the dummy file was put there to push the date to the outside of the disc where it would move past the laser faster then if it were in the inside tracks. since it's not on a disk anymore is is totally useless.

Exactly. Thats why i want an idea to REMOVE the dummy files from the iso files.

 

that sounds like a great idea but it seems i know nothing about how to do said thing, but at least google is there for you.

 

Its possible. This is done on PSX iso, some avid psx encoders have edited ISO to remove all dummy files. The problem is that not that many people know exactly where and which file is the dummy file. You would have some programing knowledge in the dreamcast environment.

It would be pretty much alot of trail and error. But its should be done.

 

if you look at the file with a hex editor it's usually filled with zeros

 

u can use winmount. i tried it and it works...but nulldc loads the compressed game very slow.

 

i make an image using daemon to create a compressed mds image format, it work nicely, marvel vs capcom 2 only weight 140 MB instead of full GDrom capasity, no speed penalty by doing so

 

Wow, you never heard about Exoboot or BootDreams, did you?
They are selfboot tools which are capable in removing the dummy sectores aswell.
They are working with all DC Image formats.
YOu should google them.

 

Wow, you never heard about Exoboot or BootDreams, did you?
They are selfboot tools which are capable in removing the dummy sectores aswell.
They are working with all DC Image formats.
YOu should google them.

Ok, i do have Bootdreams, but there isnt a "remove dummy" option...
So, how can i do it?

 

Ok, i do have Bootdreams, but there isnt a "remove dummy" option...
So, how can i do it?

Okay, than missinformations... sorry bout that.
But ExoBoot has the option. I already used it on nearly all my ripped games.
I've uploaded it here.

 

wow thanks, but where is this remove dummy option?

 

Exoboot:
I get a .bin file when I run any mode, remove dummy "automatically" and ask for a cdi. Huh?

 

wow thanks, but where is this remove dummy option?

On the first side.... remove dummy files automaticly.

Exoboot:
I get a .bin file when I run any mode, remove dummy "automatically" and ask for a cdi. Huh?

Sorry, but I don't understand, what you are saying.

 

Sure.

I have a cdi. I mount it in Daemon. Load Exoboot. Choose “Mode 1” (CD to image) , check remove dummy file automatically. Next screen, select the drive, pick a folder, chose to make cdi.

Now it either hangs here (installed all the VS runtimes) or it creates a bunch of files/bins but never once a cdi with the dummy removed. Is this the right process? Does it have anything to do with the fact that my drive says the cdi is only 245mb when mounted when the actual cdi is 700mb?

 

Bumpie.

This can help alot of people save alot of HD space, even if NullDC supports compressed stuff soon. With no dummies and compression, all of DC games can be 100mbs or so. That would be amazing.

Anyway, what is the proper way to remove dummy files from cdis?

 

i have a better idea burn your images and play from CDVD driver. this is so much more space free... i have over 80 games

 

Your an idiot, that defeats the purpose of getting the data off the original GD.

 

i have a better idea burn your images and play from CDVD driver. this is so much more space free... i have over 80 games

80 CDs take a lot more physical space than one hard drive.

...Unless CDs are the size of a penny in your world. Where do you live?!

 

The GD-ROM has no dummy file at all. else the pirate game.

 

Your an idiot, that defeats the purpose of getting the data off the original GD.

80 CDs take a lot more physical space than one hard drive.

...Unless CDs are the size of a penny in your world. Where do you live?!

putos your are an idiots, is no possible the pursose of this thread, i have downloaded many games and this is are of relative sise from somes megas hasta 850 o 1 gb(in format disjugle, alcohol o nrg) , is no true what all games still has been small this have than have 700 megas. i know this fine. your does no know nothing.:rotflmao:

 

it would be great to have this feature for everything that involves isos. it would be cool to not have 1gig wasted for every game.

for some games it doesnt really make a difference ( project justice -> 966mb, or vampire chronicle ->1001mb). then again some games compress well too (crazy taxi -> 105mb!!) compare that to the standard uncompressed 1.1gig filesize. its only 1/10 the size!

but hey, as long as it saves space, im happy.

 

You can use WinMount, compress files first, such as rar,zip,mou, after that mount rar,zip,mou as a virtual disk.