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[HOWTO] Repair corrupted files with zidrav
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Joki
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Joined: Apr 16, 2008
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PostPosted: Thu Apr 14, 2011 9:58 pm    Post subject: [HOWTO] Repair corrupted files with zidrav Reply with quote

So, you have downloaded a 4.2 GB movie and now you can't watch it because a few KB of it are corrupted?

1) Download zidrav-3.5-bin.tar.gz and extract it with your favourite extractor, preferrable 7zip. Zidrav is 82 KByte and does not install anything.

2) Start it, click on "make Checksum File", draw the file onto the "Input File" line, click go. It will generate a .CDT file of small size.

3) Find someone who has a non-corrupted version of the file, send him your .CDT file. Have him start zidrav and select "Make patch file". It will generate a patch. The more of your file is corrupted the bigger it will be. Have him send it to you.

4) Select "Apply patch file" and apply it to your corrupted file. :)

Note: you might also start by having the person who has the non-corrupted file "make checksum file" and so on, this will require 1 more step.

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PopeJo
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Joined: Oct 05, 2007
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PostPosted: Fri Apr 15, 2011 10:30 am    Post subject: Re: [HOWTO] Repair corrupted files with zidrav Reply with quote

www.freearc.org/ is the fastest packing rpogramm I know, so far.

on the other hand .. you can watch corruptet videos with VLC. it doesn't care much. it might ask you to "repair" the file (but I never saw any difference in clicking "ok" or "NONONOABORTABORTABORTABORT!!!!!" there)

and my last question is: where do I find people who got the exact same movie files as myself? link, plz

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Joki
Übergod
Übergod


Joined: Apr 16, 2008
Posts: 1037
Location: at tiled stove

PostPosted: Fri Apr 15, 2011 10:44 pm    Post subject: Re: [HOWTO] Repair corrupted files with zidrav Reply with quote

PopeJo wrote:
and my last question is: where do I find people who got the exact same movie files as myself? link, plz

I have used it when i was downloading a client for a game with a huge installer, i planed to play with collegues, so they had it already. Also it might happen if you download movies from someone and want to repait it.

But yea, i want a new network-protocol, that supports just sending you the requests blocks. Just like a normal http or ftp-server, but you will only have to redownload the messed up few KB instead of everything. :)

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JockeTF
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Joined: Aug 15, 2007
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Location: Sweden

PostPosted: Sat Apr 16, 2011 8:42 am    Post subject: Re: [HOWTO] Repair corrupted files with zidrav Reply with quote

PAR2 is an excellent repair tool as well. Another way is to use torrents to repair the files. =)

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