Hacking Which IOS are NOT USED by any game discs

[damysteryman]

Hi everyone,

So, damysteryman and myself have been making cISOCORP v3.x for a while now, but we need a bit of help.

We need to know what IOS are NOT USED by any wii discs at all, or system menus, as these would not be needed in cIOSCORP v3.x, and removing them will decrease the size of the package, and maybe allow hackmii installer support.

These are the IOS we know so far:
4 - Specified in update partitions of games, but is a stub. Not needed
9 - Used by launch titles. Needed
10 - Don't know what this used to be for, but it's now a stub. Not needed
11 - Used by System Menu 2.0x. Needed
12 - Don't know what it's for, not a stub though. Is this used by any wii discs?
13 - Don't know what it's for, not a stub though. Is this used by any wii discs?
14 - Don't know what it's for, not a stub though. Is this used by any wii discs?
15 - Don't know what it's for, not a stub though. Is this used by any wii discs?
16 - Used by "Wii backup Disc ver 1.31". Can be included to add support for it. Should we?
17 - Used by older games, such as Super Paper Mario. Needed
20 - Used by System menu 2.2x. Needed
21 - Used by a lot of older games. Needed
22 - Don't know what it's for, not a stub though. Is this used by any wii discs?
28 - Used My Metroid Prime 3: Corruption. Needed
30 - Used by System menu 3.0x, 3.1x, 3.2x, and 3.3x. Needed
31 - Used by eula and rgnsel channels, but haven't seen any discs use them. Is this used by any wii discs?
33 - Used by a lot of old-ish games. Needed
34 - Don't know what it's for, not a stub though. Is this used by any wii discs?
35 - Used by some games, Like Call of Duty :WaW, and Quantum of Solace. Needed
36 - Used by Some games like mario kart Wii and Super Smash Bros. brawl. Needed
37 - Used by a lot of music games. Needed
38 - Used by Animal Crosing Wii. Needed
40 - Used by System menu 3.3K. needed
41 - Used by Korean Games, but not sure which ones. Needed
43 - Used by Korean Games, but not sure which ones. Needed
45 - Used by Korean Games, but not sure which ones. Needed
46 - Used by Korean Games, but not sure which ones. Needed
50 - Used by system Meny 3.4x. Needed
51 - Used by an older Shop channel, but haven't seen any discs use this. Currently not needed
52 - Used by System Meny 3.5K. needed
53 - Used by recent games. needed
55 - Used by the newest games. Needed
56 - Used by new music games. Needed
57 - Don't know what it's for, not a stub though. Is this used by any wii discs?
60 - Used by System menu 4.0x and 4.1x. Needed
61 - Used by Shop Channel (not sure about v18), but haven't seen any discs use it. Currently not needed
70 - Used by System Menu 4.2x. Needed

So, does anybody know if any of the IOS we're not sure about are used by discs, or not?

 

[illinialex24]

I do not believe IOS57 has been part of any official downloads so it should not have been included in any games.

So yeah, if we could get a list of every game and the IOS's they used that'd be a good start.

And for 2.x stuff is that really needed? Does 2.x even have most Homebrew installers support?

 

[Wiiwu]

According to member siromezm, IOS57 is used by a Japanese game "Karaoke Joysound".

But since you or your tester have tested almost all the games, won't it be better to run title_lister to see what ios they all use?

 

[giantpune]

why not just make a loop out of the geckoOS apploader and have it write the needed ios to a SD card or usb gecko. it only takes 30 minutes to make it read from a usbdrive. then pass out that dol to people with 500 games on their drive and they can send you their report. just make the apploader loop when it checks the ios required for the game back to the beginning of the function and check another game.

you would get your complete list in a couple days.

 

[xzxero]

why not just make a loop out of the geckoOS apploader and have it write the needed ios to a SD card or usb gecko. it only takes 30 minutes to make it read from a usbdrive. then pass out that dol to people with 500 games on their drive and they can send you their report. just make the apploader loop when it checks the ios required for the game back to the beginning of the function and check another game.

you would get your complete list in a couple days.

mind helping out?
sounds like you can create the needed app easily.

 

[DaMan4169]

I don't know what IOS12 is supposed to do but it (IOS12v6) ran the Hackmii installer and set HBC 1.0.6 to use IOS61 on my Wii.

 

[giantpune]

ok. well i have made a dol that checks every game on the drive. http://www.mediafire.com/?jzgmdwlzzyq. there are 2 elf files there. one to run from 249 and one to run from 222v4.

there is some sort of corruption on my drive that makes it always code dump at game #58, so i have made it to use fprintf append. the way it works is you run the elf, it starts making a list. if it code dumps, just run it again. it will open the file, count the lines and add a couple before it starts the loop again. this way it will skip over a game that made it dump last time. if you have 2 games in a row that make it code dump, tough luck. if your SD card isn't detected, tough luck. if you run this elf after it has made a list with the same # of lines as your number of games, it should just quit, but it might code dump. the list is sd/IOSlist.txt or something like that

what you see on the screen is just a picture that is there from another project of mine and a box. after some time, either you will see a code dump in which you just do what i said above, or you see a screen that says "this is not a wii game" or something. that screen means the list is complete. this is by no means supposed to be a polished program. just a quick app to build a list. i don't care about bugs. they wont be fixed.


here is my list. note that some of my games have made up IDs because they are custom games. but they are based from a real iso, so the IOS is still valid.

Spoiler

0 0000TR --> 21
1 RRRR53 --> 21
2 RRXX52 --> 21
3 RJ2E52 --> 35
4 REEE52 --> 21
5 RGEE52 --> 21
6 RGFE52 --> 21
7 XXXXXX --> 21
8 R33E69 --> 37
9 RLSE8P --> 21
10 RRKE70 --> 21
11 RN4P41 --> 53
12 RO9PNK --> 53
13 R5GE78 --> 33
14 RKME5D --> 17
15 RKYP7J --> 33
16 RBFE20 --> 21
17 RWTPG9 --> 33
18 RN7P78 --> 33
19 RVFP7J --> 33
20 RBRP5G --> 35
21 RBBP99 --> 21
22 RYBE69 --> 55
23 RB5P41 --> 21
24 RI8P41 --> 21
25 RVYE52 --> 35
26 RDGPA4 --> 36
27 REAP69 --> 33
28 R4BEJZ --> 21
29 R3CP7J --> 33
30 RC9PGN --> 33
31 R6BP78 --> 33
32 RINP08 --> 33
33 RDZP01 --> 33
34 R49P01 --> 53
35 RDSPAF --> 21
36 R43P69 --> 53
37 RQEP6V --> 33
38 RX3E01 --> 55
39 R8FPNP --> 33
40 RF3P6M --> 33
41 RFFPGD --> 55
42 RUEP4Q --> 53
43 XGHE50 --> 21
44 RGQE70 --> 53
45 RIJE69 --> 53
46 RJXE5G --> 53
47 RGZE70 --> 21
48 RXLP41 --> 33
49 RG5EWR --> 35
50 RGHP53 --> 21
51 RGHE52 --> 21
52 XNWE52 --> 21
53 RGHE52 --> 21
54 RGHE50 --> 21
55 RGHE52 --> 21
56 XNME52 --> 21
57 RGHE55 --> 21
59 XGCE52 --> 21
60 SXBE52 --> 37
61 RGHP55 --> 21
62 SXCE52 --> 55
63 XASF52 --> 21
64 XBKE52 --> 21
65 RGHE52 --> 21
66 RGVE52 --> 35
67 RMC252 --> 35
68 RMC152 --> 35
69 RGHP52 --> 21
70 SXAE52 --> 37
71 HOMCHA --> 21
72 RHKE18 --> 53
73 RIOPSU --> 53
74 RIAP52 --> 53
75 RIRE8P --> 33
76 R96EAF --> 53
77 RLGP64 --> 21
78 RLJPKM --> 35
79 RLTENR --> 21
80 RQ5E5G --> 53
81 RZZP8P --> 53
82 RHTE54 --> 21
83 RWSP8P --> 21
84 RM8P01 --> 9
85 RMAP01 --> 33
86 RMCP01 --> 36
87 RMUE52 --> 9
88 R3MP01 --> 55
89 R29P52 --> 33
90 RWOP69 --> 33
91 RMHJ08 --> 55
92 ROMJ08 --> 55
93 RUAP52 --> 33
94 RVZP52 --> 33
95 RQ8P08 --> 53
96 RM9PGM --> 33
97 RX9Y69 --> 55
98 R52P08 --> 35
99 RU7X5G --> 53
100 ROWP08 --> 21
101 RONEG9 --> 33
102 R9IP01 --> 33
103 RWCE4Z --> 21
104 RURPPL --> 33
105 R7PP01 --> 53
106 RPCX7J --> 33
107 REDP41 --> 9
108 RB4E08 --> 21
109 RBUP08 --> 21
110 SZAE69 --> 37
111 RRYPHY --> 33
112 RRZEGY --> 33
113 RSCP7D --> 17
114 RZFPKM --> 53
115 RDFP41 --> 33
116 RSYE20 --> 21
117 R4CE69 --> 30
118 RP2P69 --> 21
119 RJZP7U --> 33
120 RENE8P --> 55
121 RSVP8P --> 33
122 R3SP52 --> 33
123 RSPE01 --> 21
124 RSWP08 --> 53
125 RO8P7D --> 33
126 RLFP64 --> 33
127 RMGP01 --> 33
128 RSBE01 --> 36
129 RTNP41 --> 33
130 RCJP8P --> 55
131 RHDP8P --> 21
132 RHOP8P --> 33
133 RZDE01 --> 9
134 RN5P78 --> 37
135 R9OE69 --> 55
136 R2TE41 --> 55
137 RTCP41 --> 9
138 RH8P4F --> 33
139 R3TP54 --> 21
140 RKDEEB --> 9
141 RYQP69 --> 33
142 RULP4Q --> 35
143 RUQS78 --> 53
144 RWLP01 --> 21
145 RZTP01 --> 55
146 RW9X78 --> 35
147 RWUP52 --> 53

 

[damysteryman]

Thanks giantpune.

Does anybody know what the ones colored blue are used by? (other than IOS16, I know that one)

 

[techboy]

Well, when my friend ran hackmii installer, it also used IOS12 (like DaMan said). It's the best I can give regarding IOS usage. Newest game I have is Wii Fit Plus (IOS55), but before that, next newest is MarioKart or Brawl, so running those elfs would be pointless (I have like 15 games anyway).

Also, da_letter_a, if you're wanting to leave out IOSes only to make the package smaller, try unpacking the wads then 7-zipping the unpacked content...59MB of IOSes just crushed to 3MB for me!

I unzipped and repacked them, the MD5s matched. If a batch script did the packing and MD5 verifying, CORP could get a "CORPload" smaller and the user wouldn't need to know anything more than unzip and click the "CompileMii.bat".

NOTE: I didn't use CIOSCORP IOSes here, I used a folder of 33 random run-of-the-mill Ninty IOSes + IOS5 (remember that thing?).

EDIT: Punctuation and a spelling error.

 

[xzxero]

giantpune, seriously nice.

thanks so much for being a G

anyways heres my list

Spoiler

0 SBLE5G --> 53
1 R4LXUG --> 33
2 R33E69 --> 37
3 RYWE01 --> 21
4 RBLE8P --> 21
5 RLUE4Q --> 33
6 RBBE18 --> 21
7 RBKP69 --> 35
8 RB7E54 --> 21
9 RVYE52 --> 35
10 RCGE54 --> 21
11 RDGEA4 --> 36
12 R4BEJZ --> 21
13 RQKE41 --> 33
14 R6BE78 --> 33
15 RZJE69 --> 53
16 RDZP01 --> 33
17 RDBE70 --> 9
18 RDSE70 --> 21
19 R7GEAF --> 53
20 RELEA4 --> 12
21 RZ9EG9 --> 33
22 CFCP00 --> 21
23 RF8E69 --> 21
24 RF9E69 --> 35
25 RU6PHY --> 33
26 CFTP00 --> 21
27 RUEE4Q --> 53
28 RGLE7D --> 21
29 RGQE70 --> 53
30 SXEE52 --> 56
31 RCKC52 --> 21
32 RCHC52 --> 21
33 RRBC52 --> 21
34 RGHE52 --> 21
35 SXDE52 --> 55
36 RGVE52 --> 35
37 SXBE52 --> 37
38 SXCE52 --> 55
39 SXAE52 --> 37
40 R84EE9 --> 33
41 RGBE08 --> 21
42 CHBP00 --> 21
43 RKFEH4 --> 33
44 RLBEWR --> 33
45 RLIE64 --> 33
46 RLGE64 --> 21
47 RLJEHJ --> 35
48 RXWE20 --> 33
49 R2IE69 --> 55
50 RZZE8P --> 53
51 RWSE8P --> 21
52 ROLP8P --> 55
53 RMCE01 --> 36
54 RM8E01 --> 9
55 R4QE01 --> 21
56 RMBE01 --> 33
57 RMAE01 --> 33
58 RMSE52 --> 55
59 RMLEH4 --> 9
60 RM3E01 --> 28
61 R3ME01 --> 35
62 RNJE4F --> 53
63 CMPP00 --> 21
64 RSFE7U --> 53
65 RM9EGM --> 33
66 REFP41 --> 21
67 RESP41 --> 21
68 RZYE41 --> 21
69 RNEJDA --> 33
70 RNXEDA --> 21
71 RX9E69 --> 55
72 CNGP00 --> 21
73 RNHE41 --> 21
74 ROWE08 --> 21
75 RIUPAF --> 53
76 ROAP36 --> 53
77 RDOE41 --> 21
78 RPBE01 --> 21
79 R7PE01 --> 53
80 RY2E41 --> 21
81 RY3P41 --> 35
82 REDP41 --> 9
83 RB4E08 --> 21
84 RE4E08 --> 33
85 RBUE08 --> 21
86 SZAE69 --> 37
87 R37E69 --> 55
88 RRDE69 --> 37
89 RZCE6K --> 53
90 RVSP69 --> 33
91 CSNP00 --> 21
92 RENE8P --> 55
93 RS9E8P --> 21
94 RSVE8P --> 33
95 RSWE08 --> 53
96 RLFP64 --> 33
97 RMGE01 --> 33
98 R8PE01 --> 17
99 RSBE01 --> 36
100 RT4EAF --> 33
101 RF7J08 --> 33
102 R9JE69 --> 56
103 RCJE8P --> 55
104 RO8E7D --> 33
105 RZDE01 --> 9
106 R2TE41 --> 55
107 R6TEA4 --> 53
108 RKDEEB --> 9
109 CTFP00 --> 21
110 RUZE7T --> 33
111 RUQE78 --> 53
112 RVKEXJ --> 35
113 CVBP00 --> 21
114 RWLE01 --> 21
115 RODE01 --> 9
116 RHAE01 --> 21
117 RZTE01 --> 55
118 RSPE01 --> 9
119 C64P00 --> 21
120 CWEP00 --> 21

this app should definitely give use the results we want.
im pretty sure you can look up the ID codes on wiitdb

Posts merged

I don't know what IOS12 is supposed to do but it (IOS12v6) ran the Hackmii installer and set HBC 1.0.6 to use IOS61 on my Wii.

i ran it on a couple of official 4.2U firmwares
and the installer uses IOS34

 

[icebrg5]

I'll give this a test tomorrow and supply a list of for over 375+ games.

 

[xzxero]

nice, put our lists to shame.

if only it showed the name of the game

 

[giantpune]

showing the name is easy to add to the list, but i thought it pointless. you already get the IOS and region from the ID. so with this, somebody could decide not to install the IOS's that are just for korean games and shit or the one that is for a different system menu

 

[G0dLiKe]

Tried to download but the files are corrupted, CRC error.

Anyone got a mirror?

Edit: ReDL solved it.

 

[KirovAir]

Edit: nvm.

 

[Maikel Steneker]

Well, when my friend ran hackmii installer, it also used IOS12 (like DaMan said). It's the best I can give regarding IOS usage. Newest game I have is Wii Fit Plus (IOS55), but before that, next newest is MarioKart or Brawl, so running those elfs would be pointless (I have like 15 games anyway).

Also, da_letter_a, if you're wanting to leave out IOSes only to make the package smaller, try unpacking the wads then 7-zipping the unpacked content...59MB of IOSes just crushed to 3MB for me!

I unzipped and repacked them, the MD5s matched. If a batch script did the packing and MD5 verifying, CORP could get a "CORPload" smaller and the user wouldn't need to know anything more than unzip and click the "CompileMii.bat".

NOTE: I didn't use CIOSCORP IOSes here, I used a folder of 33 random run-of-the-mill Ninty IOSes + IOS5 (remember that thing?).

EDIT: Punctuation and a spelling error.

Such a batch file would be very easy to write (for me at least) but it would make the package platform dependant; you'd have to use Windows. Of course, you should also incorporate some safety mechanism. For example, after extracting and packing the files to a WAD, the CRC32 or MD5 checksum should be checked. It's an easy and safe way that does not take up a lot of space.

 

[G0dLiKe]

Spoiler

0 RLSE8P --> 21
1 RUOPPL --> 53
2 RRKP70 --> 21
3 RMFE68 --> 21
4 RUUP01 --> 38
5 DQAJK2 --> 21
6 RVAP78 --> 21
7 RUHP52 --> 53
8 RBVP52 --> 21
9 RBWE01 --> 21
10 RV8PRT --> 53
11 RE4J08 --> 33
12 RBHJ08 --> 33
13 RVIP4F --> 17
14 R2YE54 --> 53
15 RBRX5G --> 35
16 RBAP41 --> 17
17 RBXJ8P --> 55
18 RBBP99 --> 21
19 RYBP69 --> 55
20 RSJP41 --> 53
21 RBPPGT --> 9
22 RBMPGT --> 17
23 R72E5G --> 35
24 RVYP52 --> 35
25 R7CJ01 --> 33
26 RS4EXS --> 21
27 RQLE64 --> 53
28 RCDD52 --> 9
29 RC8E7D --> 33
30 RQJP7D --> 21
31 RGKENR --> 33
32 RQ6XKM --> 53
33 RD4PA4 --> 53
34 RDDEA4 --> 21
35 RN4E41 --> 53
36 RZJP69 --> 53
37 RDCP78 --> 33
38 RINP08 --> 33
39 RPSP4Q --> 21
40 RDME6K --> 53
41 R49P01 --> 53
42 RDPE54 --> 33
43 RDSPAF --> 21
44 RDQEGD --> 21
45 RDVP41 --> 21
46 RFBP01 --> 21
47 RCVP41 --> 9
48 R5OXUG --> 53
49 RF3P6M --> 33
50 R4RP69 --> 55
51 RFFJGD --> 55
52 R7FEGD --> 21
53 RFEE01 --> 21
54 R4EJ01 --> 56
55 R6JJGD --> 53
56 RQKP41 --> 33
57 RUEE4Q --> 53
58 RGLE7D --> 21
59 RGSE8P --> 21
60 RGQE70 --> 53
61 RIJE69 --> 53
62 R5TP69 --> 55
63 R3NEXS --> 53
64 RG5PWR --> 35
65 SXEE52 --> 56
66 SXBP52 --> 37
67 RH6P69 --> 33
68 RHMP99 --> 21
69 R84EE9 --> 33
70 RHSX36 --> 9
71 RJVPGN --> 53
72 RJ8P64 --> 249
73 RL9PHZ --> 53
74 R96PAF --> 53
75 RK6J18 --> 55
76 RCPP18 --> 9
77 RLDEGY --> 17
78 RLBPWR --> 33
79 RLIE64 --> 33
80 RLGP64 --> 21
81 R2UP8P --> 33
82 RLJPKM --> 35
83 RZPE01 --> 21
84 RO3P99 --> 33
85 R2IP69 --> 55
86 RZZE8P --> 53
87 R9ZE54 --> 53
88 RHTE54 --> 21
89 RWSP8P --> 21
90 ROLP8P --> 55
91 RMCE01 --> 36
92 RM8E01 --> 9
93 R38P78 --> 53
94 RMSE52 --> 55
95 RM2X69 --> 21
96 RMVP69 --> 17
97 RMLEH4 --> 249
98 RM3P01 --> 28
99 R3ME01 --> 35
100 RL8E54 --> 33
101 R79JAF --> 21
102 RMHJ08 --> 55
103 ROMJ08 --> 55
104 RVZE52 --> 33
105 RKME5D --> 249
106 RSFE7U --> 53
107 R5XP69 --> 53
108 RNXEDA --> 21
109 RNSP69 --> 9
110 RX9P69 --> 55
111 R7OE54 --> 55
112 RUSX78 --> 33
113 RU7E5G --> 53
114 RNZP69 --> 21
115 RNHE41 --> 21
116 RSFJ99 --> 53
117 ROWE08 --> 21
118 RIPEAF --> 21
119 RONPG9 --> 33
120 RIUPAF --> 53
121 ROAP36 --> 53
122 RQ3PGN --> 53
123 R46ENS --> 53
124 RWCE4Z --> 21
125 R5JPS5 --> 33
126 RPBP01 --> 21
127 R83JA4 --> 55
128 RPPP41 --> 9
129 R7PP01 --> 53
130 RPVPKM --> 33
131 RJ2P52 --> 35
132 RY2P41 --> 21
133 RRJPMR --> 53
134 RRRE5Z --> 53
135 RR7PVP --> 33
136 RVNP7J --> 33
137 REDE41 --> 249
138 RE4P08 --> 33
139 RB4X08 --> 21
140 RBUP08 --> 21
141 RR2ENR --> 21
142 RYHES5 --> 55
143 RYGP99 --> 53
144 RZCE6K --> 53
145 R3BP8P --> 37
146 RSSJH4 --> 33
147 RS5EC8 --> 21
148 RSDJAF --> 9
149 RBSJ08 --> 21
150 R2VJ01 --> 55
151 RENE8P --> 55
152 RSRP8P --> 9
153 RS9P8P --> 21
154 RSLEAF --> 21
155 RIYP52 --> 53
156 RXXP4Q --> 55
157 RS3P52 --> 17
158 RSAP78 --> 21
159 RQ4P78 --> 9
160 R2SP18 --> 53
161 RLFP64 --> 33
162 RSTP64 --> 21
163 RTJP68 --> 21
164 R9MPFR --> 53
165 RMGP01 --> 33
166 RSMP8P --> 9
167 R8PP01 --> 21
168 RSBP01 --> 36
169 RSBJ01 --> 36
170 R4BPGT --> 21
171 RT4EAF --> 33
172 RF7J08 --> 33
173 RTNP41 --> 33
174 RCJP8P --> 55
175 RHDE8P --> 21
176 RHOE8P --> 33
177 RKFEH4 --> 33
178 RZDP01 --> 9
179 RSNP69 --> 21
180 RTVE64 --> 21
181 R9OP69 --> 55
182 R2TE41 --> 55
183 RLRP4F --> 21
184 RH8P4F --> 33
185 RXIP52 --> 53
186 RK2P01 --> 35
187 RKDP01 --> 21
188 ROTE20 --> 33
189 RVKEXJ --> 35
190 RVUP8P --> 55
191 RWLP01 --> 21
192 RODP01 --> 9
193 RKJJ0Q --> 35
194 RFNP01 --> 33
195 R64P01 --> 35
196 RHAP01 --> 21
197 RSPP01 --> 21
198 RZTP01 --> 55
199 RWZX5G --> 33
200 RWMP78 --> 21
201 RXAP78 --> 53
202 RWWX78 --> 21
203 RW9X78 --> 35
204 RE3ENR --> 21
205 RWUE52 --> 53
206 RYOPA4 --> 55
207 RTZE08 --> 21
208 R4ZJ01 --> 33

My list.

 

[mattjd]

IOS4, IOS16 are useless. IOS10, IOS11, IOS20 are used by system menus that know one uses... I believe thats it. Also some of the older IOS's that are used for the shop channel are not needed I believe IOS51 isnt needed to be edited.

 

[carbonyle]

One thing I don't understand you want some IOS not used by games for let's say give a compatibility between cIOSCORP HackmiiInstaller.
But this is easy: we just need ONE IOS non-trucha signed.
And there is a lot of stubs in the Nintendo IOSes collection: 3, 4, 10, 11, 16, 20, 30, 40, 50, 51, 52 (and of course 60, 222, 223, 249, 250, 254 on non hacked wii)
I know that quite a lot of people keep old systemmenu (especially 3.2) so it's not a good idea to touch at this one. But is there really anyone here that is still using 2.x firmware? Probably not because a majority of games have a 3.x system update in it. Personnaly iI alway use latest hackable systemmenu (and of course now i'm running a 4.2E systememnu with dirty system patch to remove HAXX checks and so on

I really hope that next cIOSCORP version will be more something based on patchmii (or DOP-IOS but it's really the same) getting IOS from NUS and applied the trucha ES, DIP, ... patches "on the fly". And I hope you will remove IOS like 10 11 20 21 30 31 because the are not used by games.

 

[techboy]

Such a batch file would be very easy to write (for me at least) but it would make the package platform dependant; you'd have to use Windows.
Agreed. Doesn't mean you can't write a Linux & Mac one as well or just offer the full size prepacked one for non-Windows users. I'd imagine command line packers are around for Linux, and I think batch scripts exist there too. Just include all the various platforms of them (Windows, Linux, and maybe Mac) and have them pack the same set of content. It's not like a batch script/packer tool adds significant size to the package (at least not the 40+MB you'll save.)

QUOTEOf course, you should also incorporate some safety mechanism. For example, after extracting and packing the files to a WAD, the CRC32 or MD5 checksum should be checked. It's an easy and safe way that does not take up a lot of space.

I believe i mentioned MD5s already in the post...anyway, yeah, you do need some form of verification to prevent making "cIOSbrick", although there is already a significant brick risk with this software as it is...made several bricks with older versions [thanks bootmii], haven't used any 3.x versions since I use USB loaders now.
..