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Can't open ZIP with many files

 
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MatthiasM
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PostPosted: Mon Jan 07, 2008 8:42 pm    Post subject: Can't open ZIP with many files Reply with quote

Hi,

I create a ZIP file with TC or 7zip that is about 50MB large and contains 3176 files and 1781 folders.

I can open and decompress this ZIP using 7zip without any problems.

but TC can't open it (eg show the files/folders in it) nor can it uncompress it. It writes "Error in packed file ...."

when I compress the the 12 top level directories separate or in groups the the ZIP files can be opened.

I had also larger ZIPs in the past (in terms of MB) which did not cause any trouble.

PS: That's the first time since many years that TC does not work as expect - compared with other apps that's perfect - great work.

Ciao Matthias Mann
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icfu
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PostPosted: Mon Jan 07, 2008 11:49 pm    Post subject: Reply with quote

Sounds like you haven't created a ZIP but a 7Z archive and only given it the wrong extension.

Open the archive with 7-Zip and press Info, or check with TrID. Or rename to 7Z and then try again...

Icfu
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MatthiasM
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PostPosted: Tue Jan 08, 2008 7:23 am    Post subject: Reply with quote

I'm not stupid.

As I have created this ZIP also with Total Commander - with the same result.

I viewed the file using TC's built in HEX viewer - it has PK markers at the start - and it has the central directory at the end (full of PK markers).

And I made sure that 7zip was set to ZIP mode.
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icfu
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PostPosted: Tue Jan 08, 2008 9:28 am    Post subject: Reply with quote

I haven't told you that you are stupid, I have only given you one out of a few solutions to your problem.

I won't risk to offend you a second time with wild guesses, especially because you have already proven in 2006 that helping you doesn't pay off. Good luck!

Icfu
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petermad
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PostPosted: Tue Jan 08, 2008 2:04 pm    Post subject: Reply with quote

2MatthiasM
I have several 1 to 3 GigaB big zip files containing of to 22000 files in numerous dirctories. They are packed with TC and work with no problems.

Try and start TC with a fresh wincmd.ini file (/i=test.ini) and pack the files again - to make sure it is not a plugin problem.
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ghisler(Author)
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PostPosted: Thu Jan 10, 2008 11:36 am    Post subject: Reply with quote

Total Commander can open all zip files following the original zip standard and the >2GB Winzip extensions. TC cannot open a zip where the file names are encrypted - maybe this is the case? I haven't received any other complaints about unreadable zip files...
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MatthiasM
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PostPosted: Sat Jan 12, 2008 5:10 am    Post subject: Reply with quote

I tried with a clean INI file and the error is no longer reproducible. It also doesn't happen anymore with the original INI file.

And the ZIP file that I created 5 days ago can also be opened now. So it seems that TC created a 100% valid ZIP file but because some strange (system) state did not want to open it (does it use memory mapping ?).

TC is started in autostart and keeps running until I reboot the machine. In this case it was several days. And I use TC a lot. Mostly file copying, compression, FTP and file compares.
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MatthiasM
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PostPosted: Wed Jan 16, 2008 5:23 pm    Post subject: Reply with quote

I could reproduce the problem with another ZIP file that I downloaded from the web: http://downloads.sourceforge.net/ogre/ogre-win32-v1-4-6.zip

After Total Commander was running ~11 days I could not open the ZIP file. I closed TC and started it again - now I can open the ZIP file (~38 MB).

I could open smaller ZIP files (tested with ~700KB files).

I'll try to get a virtual memory overview if this happens again.
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ghisler(Author)
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PostPosted: Thu Jan 17, 2008 2:35 pm    Post subject: Reply with quote

That's indeed interesting - I have never run Total Commander for such a long time, I'm always turning off the PC over night (completely, using a mechanical switch...
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StatusQuo
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PostPosted: Thu Jan 17, 2008 8:31 pm    Post subject: Reply with quote

2ghisler(Author)
Quote:
I'm always turning off the PC over night

So do I - but I use Hibernate (Suspend-to-disk) instead of shutting down, so programs do not have to be closed before switching power off.
Normally I (re)boot just 1 or 2 times a year. Very Happy

I had some defect files, that can be opened by WinRAR, but not by TC.
I didn't notice a change after restarting TC yet, though.
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