Search found 10 matches

by MetalliC
Sat Aug 17, 2019 10:40 am
Forum: NAOMI Dumps
Topic: INITIAL_D_VER_2 [GDS-0026B]
Replies: 2
Views: 7

Re: INITIAL_D_VER_2 [GDS-0026B]

does this disc had GDS-0026A label ? while GDS-0026B ring code and contents.
by MetalliC
Fri Jul 12, 2019 9:34 am
Forum: NAOMI Dumps
Topic: NAOMI GDROM FIRM UPDATE [GDS-0023C]
Replies: 3
Views: 239

Re: NAOMI GDROM FIRM UPDATE [GDS-0023C]

technically, this is a part of Virtua Fighter 4 Evolution (GDS-0024) kit, because this game require DIMM board firmware to be 2.17 (or later), also uses same security key. same with v2.13 update GDS-0023A and Virtua Fighter 4 (GDS-0012), or v3.17 update GDS-0023E and Virtua Fighter 4 Final Tuned (GD...
by MetalliC
Fri May 11, 2018 2:37 pm
Forum: NTSC-J Dumps
Topic: HUNDRED SWORDS KEY VERSION [HDR-0127]
Replies: 11
Views: 779

Re: HUNDRED SWORDS KEY VERSION [HDR-0127]

update on this, but not optimistic one. finally I get to the point where game wants key, it is about 4-5 hours of gameplay, until upper Valua city rail train scene. game looking for E.ARCADIAKEY at VMUs, quite small - 1024 bytes (2 blocks), its contents: VMS header + one icon followed by actual "key...
by MetalliC
Wed May 09, 2018 4:27 pm
Forum: NTSC-J Dumps
Topic: HUNDRED SWORDS KEY VERSION [HDR-0127]
Replies: 11
Views: 779

Re: HUNDRED SWORDS KEY VERSION [HDR-0127]

I'm not greatest expert in encryption, but it looks like key file might be brute forced, but I'm not sure how complex math it is and how much compute power it takes.
by MetalliC
Wed May 09, 2018 1:44 pm
Forum: NTSC-J Dumps
Topic: HUNDRED SWORDS KEY VERSION [HDR-0127]
Replies: 11
Views: 779

Re: HUNDRED SWORDS KEY VERSION [HDR-0127]

to my big surprise, Arcadia @barai turned out pretty amusing case. this game looking for E.ARCADIAKEY file at VMU, if it was found it will be used as decryption key for USR.PUB file located at game disk. decrypted data in its turn becomes another decryption key, for ~150 FIELD/*.MLE files. pretty ni...
by MetalliC
Tue May 08, 2018 10:58 am
Forum: NTSC-J Dumps
Topic: HUNDRED SWORDS KEY VERSION [HDR-0127]
Replies: 11
Views: 779

Re: HUNDRED SWORDS KEY VERSION [HDR-0127]

the plan is to run game in emulator with debugger, plus disassemble and analyze code in IDA, usual reverse engineering stuff. but I don't have enough time (and TBH no desire too) to play game dozen(s) of hours until the point where "key" is needed. so, it will be nice to have some input data, or at ...
by MetalliC
Tue May 08, 2018 3:57 am
Forum: NTSC-J Dumps
Topic: HUNDRED SWORDS KEY VERSION [HDR-0127]
Replies: 11
Views: 779

Re: HUNDRED SWORDS KEY VERSION [HDR-0127]

majorpbx wrote:
Tue May 01, 2018 6:57 pm
do you know if anyone anywhere has a save with the key file needed for this or the Eternal Arcadia game?
I think I can look at that.
is it known at what point these games require "key files" ? it will be perfect to have game save files near that point.
by MetalliC
Mon May 16, 2016 3:31 am
Forum: Dumpcast and TOSEC Discussion
Topic: BIOS Retail Dreamcast Dump
Replies: 5
Views: 2468

Re: BIOS Retail Dreamcast Dump

v1.004, v1.01d and v1.022 represent the only all BIOS versions for retail Dreamcast (including US/JP/PAL models) ? correct. with small addition - v1.004 is JP only (at that moment there was no US/EU models yet) and boot Japan region only discs (it have no code which change region based on Flash ROM...
by MetalliC
Thu Apr 21, 2016 3:59 am
Forum: Dumpcast and TOSEC Discussion
Topic: BIOS Retail Dreamcast Dump
Replies: 5
Views: 2468

Re: BIOS Retail Dreamcast Dump

true here is more photos from owner/dumper https://picasaweb.google.com/101985214970836533590/SegaDreamcastDE94002719802?noredirect=1 on picture below is most likely manufacture month/year https://picasaweb.google.com/101985214970836533590/SegaDreamcastDE94002719802?noredirect=1#5989507405109553314 ...
by MetalliC
Sun May 18, 2014 3:10 pm
Forum: NAOMI Dumps
Topic: NAOMI update
Replies: 17
Views: 9713

Re: NAOMI update

can I see the list and CRCs of dumped but but not yet verified Naomi 1/2 GD-ROM dumps ?
there must be at least "Tetris Kiwamemichi (GDL-0020)" mentioned in 1st message.
thanks.