Archiving can refer to the process of archiving files or the process of archiving data. File archiving is combining one or multiple files into one file or container. Data archiving is the process of relocating data that is no longer actively used to a separate storage area for long-term retention.

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How to extract data from a partially corrupt multi-part rar archive?

I downloaded a video that's 11 parts the other day. Today I tried to extract it but it tells me that part04 is corrupt. So I checked "keep broken files", but of course it only gave me the beginning of ...
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1answer
1k views

How can I updated an encrypted 7zip archive without losing encryption?

I created a 7zip archive with AES encryption. I included the option to encrypt the filenames. When I updated the file however I am no longer prompted for a password to open the file and can view the ...
3
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0answers
120 views

Possible bug in 7zip - empty folders extract as empty files

I have a directory structure as follows: Main | |--empty_folder | |--folder | |--example.txt I'm zipping it using the .NET ZipFile.CreateFromDirectory method (but I doubt this has anything to ...
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0answers
39 views

What can I use to archive files, that anyone would be able to open?

I have files that I need to send to several different international locations. They're confidential files, so I need them to be password protected. Therefore, I was putting the files on a CD and ...
3
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0answers
112 views

Unzip multipart files created from Mac in Windows

This is how I created a multipart archive from Mac; zip -r -s 1g archive.zip long\ folder\ name/ This creates files like archive.zip, archive.z01 and so on. Now I am trying to unzip this archive in ...
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3answers
539 views

How can I reliably archive the content of UDF formatted CDs and DVDs

I have been looking into copying the contents of old CDs onto mobile disks in order to save space and preserve the content, since rewritable CDs appear to degrade over time (at least the ones I am ...
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5answers
699 views

when archiving on DVD, should i make a mirror copy similar to RAID 1?

I would like to archive photos. Hard drive (HD) are unreliable after 3-5 years and are not design for long-term storage. DVDs are much better. From my research i found that TAIYO YUDEN dvd+r is the ...
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4answers
19k views

Compress a 1GB file into 200_MB?

So I just downloaded MySQL for Windows 64bit which 211.9MB but when I extracted it it is now 1.05GB. How did they do it? They archive wasn't damaged at all nor corrupted. Before (Compressed): ...
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4answers
594 views

Free command line archivers [closed]

Nowadays, we have a plethora of free arhivers (7-zip, j-zip, winrar <-- okey, that one's not free, ...) But does anyone know of some free command line archivers for popular formats (RAR, ZIP or ...
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1answer
4k views

tar: extract myfile.tar.gz archive to a directory named myfile

Can it be done with tar? Do I have to write a bash script?
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2answers
4k views

How can I create ZIP64 file and test it?

I need a zip file (ZIP64) for a test case, I put a bigfile of 5GB full of zeros and zipped it, but I don't know if is ZIP64. Should the ZIP file exceed 4Gb to be ZIP64? A 4Gb file for a test case ...
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3answers
169 views

Archiving old, outdated hard drives

I have a number of old hard drives. I've decided to throw them out. But before I do that, I'd like to keep the contents of hard drives, intact. I tried to use the ISO file format to archive but the ...
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2answers
850 views

How do delete *.jpg files from an already existing Archive?

I have at least 40 archive files, 100 MB each, which also includes many .jpg files within. How I can delete the .jpg files from these archives easily? To be more exact, I am looking for a way to ...
2
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3answers
130 views

Where can I find 7z format adoption?

How widespread is this format? What archivers support it? I would like to replace zip files I create with 7z. But I'm afraid some people will have problems opening them. Edit: The main reason I want ...
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5answers
2k views

How do you archive digital photos and videos?

Considering failure rate of digital media, hard disks/cds/DVDs, what is the best way to archive family photos and videos ? I was thinking of having a couple of hard disks that have the same data. ...
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3answers
169 views

Is it possible to create a RAR from specific selected files inside another RAR?

So I have one RAR and I want to create another RAR from only the (let's say 10K) files inside that compressed archive without uncompressing it. Hope this makes sense and thank you all in advance!
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2answers
296 views

Storing large amounts of small files into bigger files on Windows

Let's say I have 50 GiB of files that weights around 500 KiB each. My guess is that having, for example, 5 large files of 10 GiB each with the same content archived in them would be better for hard ...
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2answers
94 views

How to compress serveral, large, high entropy, but very similar files?

I have several big (as in: bigger than any dictionary, 100s of GBs) files. These files are very high entropy and compress very poorly. However these files are (as far as i can tell) almost completely ...
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1answer
3k views

What is the largest file I can write to a DVD?

I am creating an archive of a large file set using the 7-Zip command line tool, and I am going to write the archive to DVDs (2 sets, to be safe). Assuming exactly one file (a part of a 7-Zip archive) ...
2
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1answer
865 views

Are password protected files immune or vulnerable to virus?

Are password protected files immune or vulnerable to virus? I constantly password protect my files using winrar. And I noticed that it raises an alarm whenever I will scan it using my antivirus ...
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2answers
752 views

How to unrar the STDIN?

What I have tried: cat archive.rar | unrar x - cat archive.rar | unrar x /dev/stdin cat archive.rar | 7z x - cat archive.rar | 7z x -si cat archive.rar | 7z l -si The unrar doesn't recognise the - ...
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2answers
93 views

Unpack large zip file over itself

I want to unpack 20Gb archive, but I don't have another 20-30Gb of HDD free space. Is it possible to unpack this file over itself ? So that zip file will be deleted after unpacking and I will have ...
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4answers
342 views

What other archive formats save Date Created and Date Accessed?

7-Zip on Windows will save the Date Created and Date Accessed when compressing a .zip file, however it does not do this for its (referring to 7-Zip) native .7z format. Any Unix-based formats are ...
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2answers
71 views

How to add durability to an archive?

I have a collection of home videos I want to archive on Amazon Glacier. Since Glacier has a 4 Gb file limit, I need to split some of my 4Gb+ files in to smaller chunks. I figured I should add some ...
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1answer
756 views

Retention Time for Flash Memory

I am considering using flash memory, in the form of SD cards, as a means of complementing my regular DVD backups. The cards are getting reasonably cheap and have an impressive data density. However, ...
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2answers
2k views

Compare and take some contacts from Address Book Archive

I've got an Address Book Archive (.abbu) file that I backed up a while ago. For some reason some of my contacts got deleted, and I know they're in this backup. I have also changed and added some ...
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5answers
5k views

Automatically unzip/untar downloaded files?

Is there a way to automatically unzip/untar everything I download? Preferably without installing anything (I already have enough programs running all the time) and something that works with all ...
2
votes
1answer
21 views

Does any version of Windows support uncompressing splitted archives natively?

I mean, are multi-volume .zip archives, or maybe any other kind of archive format, natively supported without any third-party application like 7Zip or WinRAR?
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2answers
94 views

How to compress multiple files with similar names?

So I've got some 20 000 files that I want to compress and group by following logic: compress every file that have identical characters up to ( also include files that have no ( So the files are ...
2
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1answer
32 views

How can files in virtual disks be deleted without a complete rewrite of the rest of the virtual disk?

I would think that for a file to be deleted from a virtual disk file, all the data that exists after the deleted file would have to be re-written to the file. this seams to be true for archives like ...
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3answers
731 views

Archive software for big files and fast index

I'm currently using tar for archiving some files. Problem is: archives are pretty big, contains many data and tar is very slow when listing and extracting. I often need to extract single files or ...
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2answers
967 views

Good practices of creating redundant archive for long time cloud storage

I want to create digital archive of photos, documents and other imporant stuff to store in the cloud (likely Amazon Glacier). Preferably one year per archive, up to 10 gigabytes each. I want to make ...
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2answers
2k views

How do I configure Google Chrome to open zip files in file-roller instead of Nautilus?

When I download a .zip file using Google Chrome on Linux, upon clicking it the .zip file opens my Downloads folder in Nautilus, not the .zip file in file-roller. Ironically, Google is mum on the ...
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1answer
2k views

Create a 7-Zip including only specified folder and excluding certain extensions. No scanning

I'm trying to create a 7-Zip archive that would compress a certain folder (only specified one!) while excluding a certain file extension. I've come up with this: "PATH-TO-7Z.EXE" a archive.7z ...
2
votes
1answer
672 views

Archiving large folders

I'd like to create a (compressed) archive of a folder which contains ~350,000 items totalling ~17 GB. Is .tar.gz a sane format to use, or would .zip, .rar, or .7z work better for handling that much ...
2
votes
1answer
5k views

is Winrar's “store” mode the same as tar?

The question kind of says it all. When archiving files with Winrar you get the option of different compression modes, one of which is "store". I'm under the impression this does no actual compression ...
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2answers
2k views

Creating/extracting RAR files on Mac OS X

I would like to be able to create RAR files easily on Snow Leopard with some sort of GUI utility. I know that RARlabs maintains a Mac version of the RAR command line utility, but I don't want to have ...
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2answers
48 views

LamedropXPd-like very simple zipper?

A friend of mine needs to zip a bunch of MP3's on her locked-down XP or Vista PC at work. There are two requirements: Since she doesn't have admin rights, the application should either not require ...
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1answer
2k views

DAR archive GUI utilities for Mac/Windows?

Are there any DAR archive utilities that work for Mac / Windows? All I can find are the command line programs, and the GUI programs for Linux.
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3answers
2k views

programmatically extract tar.gz in a single step (on windows with 7zip)

PROBLEM: I would like to be able to extract tar.gz files in a single step. This makes my question almost identical to this one: stackoverflow question for tar-gz. My question is almost the same, but ...
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1answer
72 views

Archiving websites like Internet Archive

Most of the data for my research needs are met by our Government websites. Problem is they take down websites or certain pages or break the links. But my research demands the access to information ...
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2answers
758 views

What compressed archive formats can Windows 8 open natively?

I like Windows' built-in handling of ZIP files, and I like to associate compressed files with Windows Explorer whenever possible, rather than a third-party file archiver like 7-zip. Aside from ZIP and ...
2
votes
1answer
34 views

seeking a tool creates space-efficient web archives

I am seeking a tool to space-efficiently archive a blog that is changing every day or even two or three times a day. I don't mean that individual blog posts change - not regularly anyway - I just ...
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2answers
488 views

How to get a specified file extracted from a JAR file using a batch file?

I have a test.jar file on windows and I want to use 7-zip to get a certain file from outside of the archive, such as the "com/app/test/FILE.class" file. I only have access to java, 7-zip, and the ...
2
votes
1answer
166 views

Is there a twitter client which automatically saves all tweets I see? [closed]

I'd like every tweet about certain topics saved, so tweets with a certain hashtag, word, user, etc. To reiterate, if I see a tweet, I want to save it forever and ever. I'm running Ubuntu Linux.
2
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1answer
291 views

Batch command to archive folders with content using WinRaR

I have lot of folders in the root "C:\Test\Archiv\" (more than 1000). To be more specific, I get one every hour. They are named as following : ay %year% m %month% d %day% h%hour% In each folders are ...
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1answer
106 views

Indexed and seekable tar files

When backing up large amounts of files, I've been taring them so that I only need to move one file around. But listing the content of tar files and extracting specific files out of them is really ...
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0answers
28 views

Splitting a zip archive

I have a zip archive containing a big directory tree with many files. I'm using an application that does something with zip archives. The problem is that the application has a limitation on how many ...
2
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1answer
71 views

Splitting tar archives and uploading them one at a time

I want to backup my systems to split tar archives with a script uploading them one by one. It has to create the split archive and then run a script. The script uploads the part and deletes it. This is ...
2
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1answer
44 views

Restoring file properties but not the complete files, from backup

While copying data from my old storage on a Linux computer to the new (linux-based) NAS, I accidentially failed with getting the properties (most important: the modify dates) along to the new ...