Why are all my GDIs 1.10 GB?

[js100serch]

Hi.

I bought a dreamcast with a GDEMU and it came with many games pre loaded, I deleted a bunch and tried to put in mine. But I've just realized that every single game I have is 1.10GB in size. While the GDIs the seller pre loaded varied in size, 780mb, 600mb, 300, 900, etc...

how can I get the real size?. I suspect not all these games are 1.10GB in size. What should I do?.

I'm using 0Extract Re-Build GDI's to build and extract images and GDEMU_SD to manage the 32GB SD card. I downloaded my images from here.

https://cdromance.com/dc-iso/sonic-adventure-2-usa/

Thanks.

[Spleet]

GDI rips of that size are 1:1 duplicates of the GD(Gigabyte-Disc) disc image. To my understanding, often, these disc images would be padded with dummy files to optimize read/load time. Once ripped, however, the unnecessary files can be removed and/or compressed to occupy less space and be fit on a standard 700MB cd-r for backup. The 1.1GB files are the best choice for play as they're as close to a direct copy of the commercial disc image as you can get.

See: TOSEC archived dreamcast games

[Dakangel]

Hi.
I've just realized that every single game I have is 1.10GB in size. While the GDIs the seller pre loaded varied in size, 780mb, 600mb, 300, 900, etc...

how can I get the real size?. I suspect not all these games are 1.10GB in size. What should I do?
Thanks.

Use the gdemu / gdmenu card manager to enable the trimm option to shrink games and the list order

[deluxux]

You got ripped off if you didn't get the full 1.1gb image lol

[megavolt85]

The 1.1GB files are the best choice for play as they're as close to a direct copy of the commercial disc image as you can get.

a dummy file only shifts data to the end of the disk, where the read speed is higher, this file is useless for ODE, it only takes up free space without bringing any benefit

BIN tracks contain data for error correction and synchronization, this is necessary for the disk, but absolutely useless for ODE, ODE also spends extra time discarding unnecessary garbage

saying that a 1.1GB image is better than a truncated and optimized GDI you are misleading people

[fraggle200]

Hi.

I bought a dreamcast with a GDEMU and it came with many games pre loaded, I deleted a bunch and tried to put in mine. But I've just realized that every single game I have is 1.10GB in size. While the GDIs the seller pre loaded varied in size, 780mb, 600mb, 300, 900, etc...

how can I get the real size?. I suspect not all these games are 1.10GB in size. What should I do?.

I'm using 0Extract Re-Build GDI's to build and extract images and GDEMU_SD to manage the 32GB SD card. I downloaded my images from here.

https://cdromance.com/dc-iso/sonic-adventure-2-usa/

Thanks.

have a look at the GDEMU collections in here viewforum.php?f=22 they're all truncated, where possible, so you should save the most amount of space by using images from them. If you can't see the Downloads section then you either need a verified post or have 5 posts on here before it appears. I can't remember what the rule is.

Personally, I'm with Megavolt on this. Even though the game data is intact on a truncated image I still get the niggling feeling that there's something missing once it's had the "junk" stripped out of it.

[js100serch]

Hi guys, thank you for your answers. I thought this forum was dead. So yea I downloaded a bunch of games form that list, it is awesome.

I have a problem though. Trickstyle appears to be broken. When I press start on the title screen que game freezes. The menu appears but without text, the music stops and that's it, it stays there. I can reset the console with the button combination we all know, and go back to the GDEMU menu. I'm playing on a NTSC console.

Any idea of what's going on?

[Gromber]

hi! some games have problem when you truncate the gdi.

[megavolt85]

hi! some games have problem when you truncate the gdi.

I haven't seen them, give me an example

[brunovieira90]

Hi.

I bought a dreamcast with a GDEMU and it came with many games pre loaded, I deleted a bunch and tried to put in mine. But I've just realized that every single game I have is 1.10GB in size. While the GDIs the seller pre loaded varied in size, 780mb, 600mb, 300, 900, etc...

how can I get the real size?. I suspect not all these games are 1.10GB in size. What should I do?.

I'm using 0Extract Re-Build GDI's to build and extract images and GDEMU_SD to manage the 32GB SD card. I downloaded my images from here.

https://cdromance.com/dc-iso/sonic-adventure-2-usa/

Thanks.

does the 0extract rebuild gdi you are using have a bat named build truncate gdi? if so, you should get the folder of the extracted files that you got using the extraction application to mount a new gdi without the dummy files. watch this video, it will help you a little with that.

https://youtu.be/o9XQUs9hSpg