here is a thread about modding 2k sports dc games:http://www.cdrom-guide.com/forums/archi ... 79729.html
here is a thread about roster vmu saves:viewtopic.php?f=21&t=11364
you could use japanese cake's gd-rom explorer to extract the .gdi data from track03.bin.http://www.mediafire.com/file/6qpums8d3 ... 3.zip/file
*there are also scripts available for extracting .gdi files...
then for building the .gdi after you have modded files maybe try this? (i have never tried this b4)https://projects.sappharad.com/tools/gdibuilder.html
*i think there are scripts available for building .gdi ??...
ppl have tried modding the roster for the nfl2k series on dc (editing the iso, not vmu save) in the past but eventually gave up on the projects.
i have always wanted to mod the uniforms, stadiums, etc. (basically add them from all the different nfl2k games)
my issue with the 2k sports games is trying to get them to boot as selfboot .cdi files for cd-r etc.
i have run into many issues doing this, i think the only way to do it properly since cd00 can't be found in hex (more than likely bin file is encrypted, not scrambled as descrambling does nothing)..is to add the main.bin file at the same LBA that was used in either the original echelon or kalisto release i do not remember...
1st_read is not the main bin file for the game.
have you ever wondered why no scene releases have ever been made of these games except the original kalisto, echelon releases? correct me if i am wrong and there are other releases???
now what might make all of this irrelevant is modding the .gdi and that way you would not need to bother with LBA and protections etc.
good luck with doing this mod..i would definitely be interested in playing a modded 2k game on dc.