"Change" is used to select the card, yes. Then you'd "Insert" when appropriate.
The naming depends on what you want, the only time you get .1, .2, .3, etc. is when there's already a card under the same name.
So you'd want something like mindstorm.bin & john.bin, etc.
There's no easy way to do that, no. I'd have to make it work with every game that my program works with, and most have some type of encryption on the card data.
You are supposed to be able to scroll the cards, but there's some bug I haven't bothered fixing yet.
RE: the bin files
The ".1", etc...
Use this version instead. https://github.com/GXTX/YACardEmu/releases/tag/CI-3387ffa
Before building do `git checkout 3387ffa`
I'll fix it sometime next week, covid. :^)
Gundams biggest blocker is it expects a specific netfirm revision that hasn't been archived. I ended up editing the game to just check the latest (plus a custom kernel, wont work on any public even hacked).
The Chihiro kernel will only run on a MCPX2 motherboard, so it's required to have the version provided here. The eeprom also needs to be changed due to a bug with how the hack was done.
It's a fair bit of work. If you're doing a retail to Chihiro conversion it's not much extra since you're already flashing the Xbox's TSOP. But I'm probably not going to release the patch anyway, I think there's very little interest in such things, and it was more for my own experimentation, plus...
The kernel on the Xbox checks the signature and changing anything causes it to fail the check thus returning to segaboot. The netdimm does allow for modification of running memory, however the section the kernel is running is write protected (at least with the built-in netdimm memory commands)...
It makes a check for that specific net revision. Unfortunately you can't just edit the game to remove this check as the kernel is checking the code sections for the correct hash. I have a custom kernel which removes these checks and can do fun stuff like play Gundam and edit games for real...
It's not... like "perfect" RGB how other consoles have it. Xbox sort of has a slight blur, but I find it a better picture than running it through the baseboard. Not sure about your interference, could be the 3 VGA caps are going bad, or bad 5v going into the sync splitter. @obcd had played...
You can use an Xbox SCART cable and then just break out the RGsB. Cleaner video than going through the base board. Chihiro is happy because the SCART cable sets the 3 signal lines properly.