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YACC v0.4.0.2 Released
greg | December 20, 2007
YACCity YACC, don’t talk back… Unless of course you’re downloading the latest version of Yet Another CSO Compressor (YACC) with two Serbian (latin & cyrilic) translations by FillerUE. In addition to that, two news skins — redbull & OmBre — courtesy of marc46.
kapoue3’s YACC acts as a front end for compressing ISO images to BOOSTER’s CSO and/or Uncle Jam’s JSO format. It’s compatible with kapoue3’s CisoPlus extension as well.

Download: YACC v0.4.0.2
- source: yacc.pspgen.com
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what this do?
…You do not know what this is? What.. have you only been here for a week?
It compresses ISO’s into CSO’s… if you do not know what it is, google it…
does it incorporate psx conversion yet ????
otherwise it dont do shit any the other do, does it??
ughhhhh so im guessing it just takes ur umd and saves it into ur hombrew folder…?
You sir fail.
Find out what a CSO is and then come back.
dude i know what it des stfu…im not a nub dude….w/e
Obviously, you dont’t if you can’t understand what the program does.
Oh btw. It’s for Converting ISO’s to CSO’s/DAXs/JSO’s (WAY Smaller file to fit your MS), and also converts them Back into ISOs. There are many features that this program has such as, Batch compressing and setting how much you would like to compresss it, and so fourth.
Check it out.
You sir (Adam) win.
Thanks. What do I win?
lol @ noobs
gtfo psp-hacks
I have to agree with you.
I click the link and I get a fullscreen advert. So I close the browser and try again the same. IS PSP-hacks bugged?
my apologies for the ad. Need to pay for some extra bandwidth this holiday season. It should only appear once though. I notice the problem in Safari, but other browsers behave accordingly. What browser are you using?
I got no ad at all, and no issue downloading. Then again, I cheat.
Firefox 2.0.0.11, Adbock v.5
If I’m not mistaken, Adblock blocks the “Ad” however, it still doesn’t block the page from loading…
It bypasses the add entirely.
hey man i’m no noob stfu and also now i know what it does pretty cool im usein nowz lolz
“usein nowz lolz”
….What was that about being a noob?
english is a wonderful language, you should try using it sometime
Haha. I hate this new generation. They go on the computer and they make up some damn language which is essentially the English language but worse. And what’s with all the extra Z letters? “usein nowz lolz”? And I hate when people replace the E letter with a 3. How did this all happen? Everywhere all over the Internet you find stupid people who talk like this, “OMG skool wuz so borin, lawl.”. And even for their sake, why the hell would they even allow themselves to type so stupidly?
I’d have to agree with you, but this a psp hacking site, so please, bitch elsewhere.
Maybe on like a… “holy crap, children and teenagers are raping the English language on the internet” forum…
You might want to consider seeking sex. It may help calm you down and allow you to accept more of the bs around you. If you find it doesn’t, try something kinkier. But kids are kids and they for some reason use extra Z letters and poor english in general. Get used to it, its the hip thing…..
cheers for this :)
is there some new must-have features or just bugkilling?
Well.. Bug killing is generally a good thing… and its only a small update (from 0.4.0.1 to 0.4.0.2).
But at least its improving :D.
yeah ofcourse =) but I haven’t noticed some major bugs in the 0.4.0.1 yet.
Is this any better than PSP ISO Compressor v1.4. Is anything better the PSP ISO Compressor v1.4. If so then let me know cuz this has been workin’ fine for me.
Yeah i have the same thing that you got :P
lol i still use dann kay’s ISO compresser it duz exacly wat i need also i use UMD GEn lol thatz all use
Hmm, I hope this compresses more than that of “UMD GEN” that i have.
sheesh too many nerdy fags making up names and shit. Calling people boobs . Be usefull and answer the damn question.
Those people that are “noobs” don’t have to worry, everyone have the right to learn.
seriously everyone has been a noob at one time a year ago i was a total noob to cfw
jaryth you retard, why not just tell the guy what its for? I know why, cos your a big afat swine and you smell of piss.
Proof? Why not tell them yourself?
Note that he didn’t deny the “big fat swine and you smell of piss.” part. Interesting.
just fucking google it and stop asking fucken stupid questions.
I use dannykay’s PSP ISO Compressor as well. Hmm, I wonder if the compresssion rates are better on this program…
Yacc rocks!!! It’s the best! and it uses CisoPlus
I love the skins, it’s really funny to let users add some cool pictures
I agree wit you guys but i don’t know much about it…
is this gonna compress the files even smaller by usein Ciso Utility???
Ciso Utility is not a compressor is just a GUI. It uses the old compressor of Booster. Note that Yacc is also a GUI, but it uses CisoPlus. BTW, Yacc has the most powerfull interface: batchprocessing, thread priority, drag&drop, and so on… I really don’t understand why using something else than Yacc… maybe I’m wrong, but I don’t see another CSO compressor (I said compressor, don’t talk about UMDgen) that is better than Yacc+CisoPlus
@ fun_psp_45 thanks 4 help m8 :O)
no problem.
It’s also a little bit confusing because there are a lot of GUI but only Yacc use third party sotfwares in a nice way.
This is awsome
What features does this have that UMDGen 4 doesn’t have?
Lol @ Jaryth
It seems he did not give any opinion on the program, and only commented on other peoples comments. Way to go!
my favorite compressor it’s much faster than all of the other ones i have tried… almost twice as fast it seems.
So… does anyone else realize this project has the same name as an integral tool to EBNF Grammar, also called YACC (Yet another Compiler Compiler)?
Am I the only one…LOL. Tongue in cheek name, I guess. Or maybe the YACC compressor authors are trying to get more hits to their dev site or something. YACC Compiler is largely used in industry engineering.
Este compresor de UMD esta pasau me lo recommendo un amigo me dijo que era lo mejor. NO se equiboco jajaja se lo recomiendo a todos.
Lol why is there a screenshot for 4.0.01 when it’s the 4.0.02 download?
i use umd gen and this it seems to be able to do the job that others cant it is one of the best compression,decompression progams around
well done on the update
keep up the awesome work dude
jjg