it works perfectly with the files you provided.
if it returns that error with the others than mean they are not supported or are no cpk at all.

the script is valid for the reinjection so read carefully the section 3 of quickbms.txt:
http://aluigi.org/papers/bms/quickbms.txt

you must provide one of these files or at least a part of it:
viewtopic.php?f=10&t=6747

it's a classical CRI CPK archive.
use quickbms + cpk.bms or the original utf_tab suite of hcs:
http://quickbms.aluigi.org
http://www.aluigi.org/papers/bms/cpk.bms
http://hcs64.com/vgm_ripping.html

because the format is a modified zip archive.
anyway it doesn't contain deflate (compressed) data, so it uses encryption/obfuscation or something else.

this script doesn't support the folders because their format is not clear: get FULLSIZE asize for MYOFF = 0 < FULLSIZE get INFO_SIZE long getdstring INFO 4 # PDIR not supported if INFO == "FILE" get NAMESZ long math NAMESZ *= 2 getdstring HASH 32 getdstring NAME NAMESZ set NAME unicode NAM...

ok done, I have just updated the script.

the problem was simply that also the rc4 encryption is related to the endianess, that was the cause

upload the bin file which gives the problem so that I can take a look at it.
I'm still working on the scripts for the Eurocom games so it's ok :)

Another game developed by Eurocom with a modified file format derived from games like Sphix, Vancouver 2010 and G-Force.
script for QuickBMS:
http://aluigi.org/papers/bms/disney_universe.bms

script for QuickBMS:

to anyone interested in the comscan method:
http://aluigi.org/quickbms/comtype_scan.htm

there is no list because I add/update them frequently.
so they are available on the quickbms page (html parsing) and in the other_bms_scripts.zip file

remember my suggestion about the webspace, just to avoid situations like that one of the deleted link.
come on, it's full of free webspaces out there :)

forget what I said about the "possible" script, I was thinking to other things in general.

same format of Cake Shop and other games (keyword "EEPAK" on google):
http://aluigi.org/papers/bms/cakeshop.bms

PS: a tip, upload EVER a piece of the archive and NEVER the whole game/pak except if after request of the reverser who wants to work on the format

I don't see problems or difficult things, it's just like WRS said:
"KF\x13\x00MD5" followed by the md5 in binary form (so 16 bytes).
if you want I can write a script for doing the job automatically but if you must modify only one or two files is better if you do it by hand :)