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Compresser 1Gb en 10Mb seulement !


Windson

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Salut,

 

KGB Archiver est un soft développé par une équipe polonaise et possède sûrement un des meilleurs taux de compression.

De plus il est possible d’encrypter ses archives ce qui vous permet de compresser vos fichiers avec une sécurité maximale.

 

Le seul reproche est qu’il est nécessaire de le faire fonctionner sur une machine puissante (P4 et + et 256 de Ram et +), surtout pour des taux de compressions très élevés. Il est si gourmand qu’on pourrait l’utiliser dans des benchmarks pour tester le potentiel d’un PC ^^

 

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non non ! tt depend du fichier les gars:) ! si c un fichier texte,musique, Video... etc..

si c t avec n'importe quel fichier ca aurait été une revolution;)

j'ai deja fait le test avec un fichier de 700mo en comparant entre WINUHA, WINRAR, WINZIP 11, et 7-ZIP et il n y avait pas un grande difference avec winrar ... vu le temps qu'il mettait pour gagner 4mo ...ca ne vaut pas la peine..

c simple faite le test par vous meme ... prenez un gros fichier et testez !

Je prefere de loin utiliser WINRAR qui devient tres repondu que d'utiliser KGB qu'on doit le mettre en EXE parceque on le trouve rarement sur une machine..

et je suis d'accord avec MR_DIABOLOO si il utilise 100% le CPU.

merci^^

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salem,

 

je me demande quel algo utilise ce KGB, en tt les cas les 1GO dans 10MO c'est pas toujours possible sela depend du fichier source et de la repitition des sequences.

 

non non ! tt depend du fichier les gars :) ! si c un fichier texte,musique , Video... etc..

si c t avec n'importe quel fichier ca aurait été une revolution ;)

 

les fichiers video/music sont compressés avec des algo avec pertes, c'est des algos qui permetent des pertes de données en contre partie d'un gain d'espace mais pour KGB ARCHIVER c'est un WINRAR LIKE, donc c'est sencé garder le fichier intacte apres decompression, et les 1GO dans les 10 mo ça me parait un peu trop révolutionnaire.

 

c'est comme l'histoire du windows longhorn qui tenait dans une disquette--> apres decompression ça donnait 1.3GO, j'ai meme pas voulu essayé telement ça me paraissait bizzard.

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Salem,

 

voila!! exact!! il y avait un longhorn qui tenait sur disquette et parait t'il qu'il marché^^

 

apres decompression c'est vrai qu'un fichier d'1 MO peut peuser 1GO, mais si on l'ouvre avec un editeur on verait un truc du genre 000000000000000000000000000000000000000000000000000000 ou ffffffffffffffffffffffffffffffffffffffffffffffffffffff, ie : que des données du fichier source (d'un iso par exemple) on été remplacé par des fichiers bourés d'info 0 ou bien que leur entetes ont été modifé, c'est une sorte de rip je crois,

 

s'il y'avait un soft sur le marché qui permetait de faire tenir 1GO dans 100 mo et cela sans "pertes de données" ça se saurait surtout en p2p et autres mais je ne crois pas qu'il existe un algo qui permete d'avoir un tel taux de compression.

 

je rentre athome et j'essaie vite ce truc pour avoir le coeur net :eek::rolleyes:

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Invité HammerOfGod

Avec un fichier texte, tout le monde sait faire ça, et il est impossible de compresser un DivX de 700 MO en 100 MO :D

 

Cela dit, faut avouer que le moteur PAQ7 est pas mal.

 

Et je pense que la partie la plus interessante est qu'il soit Open Source, il y'a des beaux algos de compression dedans.

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