#1
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CorePack Compression methods ? Help
CorePack Compression methods ? Help
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#2
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I don't see anything strange in corepack !! they Just are clever in ripping unnecessary files or language files , other thing they are using normal methods
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#3
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As he said, they are very clever in ripping useless stuffs, I remember them ripping Multiplayer out of CoD: Advanced Warfare which no other repack teams could do at that time, same they did with DOOM. BTW, is this forum just about knowing and copying other groups methods ?
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#4
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Quote:
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#5
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Corepack is one of the oldest repacking team in the repacking field and by the time they know exacty which files should be ripped.....like the best thing is that they replace the game intros by their corepack intro or they just re-encode it...............but fitgirl....hmmm you know
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Jiva newstone (04-12-2017) |
#6
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Quote:
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#7
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Typical Corepack string looks like this, afair:
srep+delta+lzma:177mb:fb273:lc8 It's generic and well-known, aside of using delta, which should never be used by default, as it make compression worse in 90% of cases, make it slightly better in 8% of cases and only in 2% of cases gives noticeable compression gain with LZMA. These numbers based on my huge bruteforcing database I build through my repacking. I told about it to Shiv in the beginning of 2015, but he doesn't like to learn, so the delta is still in there. So if you copied your compression string with delta from someone else - get rid of it and never use blindly. Delta is a very specific byte-mixing filter, which can help only with certain types of data. And yes, as stated above, CP's "records" are build on ripping data, not on actual compression. |
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#8
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Quote:
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#9
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Pffff, you hate CorePack, just say that directly.
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#10
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Me too , I don't know what is the reason but i don't like them Maybe 1 year ago I download a 20 GB repack & what it was corrupted !! As for someone from EGYPT to download 20 GB is taking about 7 days X 15 hour Downloading
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#11
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Hehe, moderators nowadays are too lenient it's even funny.
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#13
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Well, I hope they won't remove my "delta thoughts", cause this is too real
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#14
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Hmm...Hmmm...Delta isn't some usual brute force compressor, it detects data tables and minimizes them. Well, in simple words, eliminate repetitions of data. This is an old benchmark from Delta libraries, hope you find it intriguing...
Orginal File = 601 MB (630.408.442 bytes) CCMX 6 = 282 MB (296.109.161 bytes) DEL + CCMX 6 = 284 MB (298.355.666 bytes) RZM = 321 MB (337.587.110 bytes) DEL + RZM = 309 MB (324.613.378 bytes) REP + RZM = 321 MB (337.189.036 bytes) DEL + REP + RZM = 309 MB (324.184.644 bytes) Hey Razor bro, whats up?
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We are such stuff as dreams are made on, and our little life is rounded with a sleep. |
#15
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Srep can indirectly show if delta is good or not, anything srep's ratio can go below 70 or 65% then delta helps.
dont forget that srep delta and lzma are all based on lz77 matchfinding architecture
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My projects : Masked Compression, lzma2(xz) on Freearc, Zstd compressor for windows My optimizations : packjpg.exe, zstd, lzham, precomp-dev-0.45. |
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