as I promised:
http://aluigi.org/papers/bms/funlabs.bms

I gave a quick look at it before and the job can be done, maybe I will do it later or tomorrow.
it doesn't seem hard, it's just an incremental xor requiring 2 arguments: the beginning xor byte and the amount of the incrementing (for example 0x88 and 1 as WRS noticed).

considering that the problem is in the reading/conversion of this format I suggest you to move the thread in the "Audio File formats" section (viewforum.php?f=17) so that it can gain more visibility

the initial part is simple, the rest instead looks like a sequence of compressed chunks of an unknown algorithm or encrypted+zlib

it looks like the data from offset 0x19 is compressed (it's preceeded by ZSIZE and SIZE) but don't know with what algorightm

as usual people must waste their time because who makes the request doesn't provide full details... blah USM are videos ("CRID" signature) so there is nothing to unpack/repack. for more details: http://forum.xentax.com/viewtopic.php?f=17&t=4956 I casually noticed this just now when I w...

xor.exe is a command-line tool so if you double click on it is normal that it doesn't work :)
while for quickbms you can use the following script:

eh???
I'm the author of quickbms so if you have found a problem in the latest version (0.4.10b) I would like to know it, thanx

quickbms supports the reinjection of files but unfortunately this particular game uses files divided in chunks and so there is nothing to do easily

job done, have fun:
http://aluigi.org/papers/bms/orchid_games.bms

script for QuickBMS: # Sonic 2006 # script for QuickBMS http://aluigi.org/papers.htm#quickbms endian big idstring "\x55\xaa\x38\x2d" get OFFSET long get INFO_SIZE long get BASE_OFFSET long getdstring DUMMY 0x10 goto OFFSET set NAME_BASE long 0 set PATH string "" set NAME string &...

script for QuickBMS: idstring "WAD0" # automatic endian get DUMMY long get FILES long get BASE_OFFSET long getdstring DUMMY 0x20 for i = 0 < FILES get OFFSET long get ZSIZE long get SIZE long get CRC long math OFFSET += BASE_OFFSET if ZSIZE == SIZE log "" OFFSET SIZE else clog &q...

- download quickbms: http://aluigi.org/papers.htm#quickbms - save the script on the disk - launch quickbms.exe - select 7x7m.bms - select main.pak - go in the folder where you want to extract the files - all the files will be extracted anyway when you launch quickbms.exe it will guide you in these s...

uhmm it's strange because in the past the games that used starforce had their files all encrypted in an unique archive acting as a file system (disk image) and having a particular signature at the beginning, while in this case the file is just signless like directly encrypted. anyway we will wait th...