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edenkyira / snapbackup

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max zip file asks for password? says zip not readable size=4,072,832,502 snap.backup_2012-11-22.zip #13

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago 
What steps will reproduce the problem?
1.when zip is max size it asks for password t open
2.
3.

What is the expected output? What do you see instead?
error is; archive not readable would like to try a password
using 7-zip
What version of the product are you using? On what operating system? latest as 
of 11-22-12

Please provide any additional information below.

Original issue reported on code.google.com by stevedon...@gmail.com on 22 Nov 2012 at 5:58

Attachments:

GoogleCodeExporter commented 9 years ago 
This is a VERY important backup, now that my computer was lost. It was created 
on win 7 pro 64 bit. I got the error when trying extract using 7zip or windows 
own unzip on the same OS. I now try to extract in good old win 7 32bit, and I 
get invlaid file file.  the file size is 4gig.

The exact actual size is: 3,977,376kb, I really need the data in this backup. 
Is there any brute force unzip program  that will attempt to display it's 
contents?
Filename                 file date             file type
snap.backup.2012-11-22   11/22/12 11:41 am  Compressed(zipped)Folder

Original comment by stevedon...@gmail.com on 12 Feb 2013 at 1:04

GoogleCodeExporter commented 9 years ago 
I am not aware of any brute force unzip programs, but they may exist.  The zip 
format, unfortunately, has a 4GB file size limit.  This limitation is 
supposedly fixed for Java 7.

Snap Backup displays the following message if the zip file is larger than 3.8 
MB:
     "*** ERROR #40 ~ Backup file may exceed 4 GB limit -- file corruption possible!"

See Issue #8 for details.

Original comment by pilaftank on 12 Feb 2013 at 2:17