Compression decreases the size of data.

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8
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4answers
6k views

Missing send to “Compressed (zipped) folder” after 1511 update or drag+drop to .zip

After allowing the Windows 10 1511 update to be applied, all options have disappeared from the right-click "send to" menu, except for "Bluetooth Device". Additionally, I can no longer drag and drop ...
0
votes
1answer
32 views

What methods exist for increasing usable consumer ethernet bandwidth in OSI layers 1-4?

What compression methods are applicable to a typical 1Gbps ethernet link? (non-enterprise bias, hardware or software, layer 1-4) Or: "What solutions exist to improve typical 1GigE ethernet throughput?...
0
votes
0answers
56 views

Use avconv and image magick to convert video into reduced size gif

I'm using this answer to convert a video capture of a small section of my screen to a gif for a tutorial on a webapp. The problem is that the gif conversion increases the file size. avconv -i video....
0
votes
1answer
76 views

Booting from a compressed iso file

I'm trying to format my PC from USB, since booting from CD won't work. I'm trying to make a USB bootable .ISO file from a win7 CD. Now I've created a .iso file whose size turned out to be 4.29 GB. My ...
1
vote
0answers
82 views

Archive Directory Using Zpaq

I am trying to setup a backup system for a server that I manage to improve upon the old system. I am choosing zpaq because it provided good compression with the old system using lrzip -z and because ...
0
votes
0answers
25 views

create AVC_Intra from uncompressed in best quality

I have some 720p uncompressed YUV video and I need to transcode this video into an AVC-Intra using the best possible quality. The best possible Quality is needed, because the video probably will be ...
9
votes
1answer
2k views

Hide NTFS compression blue double arrow icon overlay

Since the last Windows 10 update I have these blue double arrows on almost every item (all files & folders that are NTFS compressed). How can I remove these?
-1
votes
1answer
32 views

Mac - Alias linking breaks after unzipping the folder

I am new to Mac. I am trying to zip a folder in which there are two sub folders say folder A and folder B. I create an Alias of a file in folder B and move the Alias to folder A. After I create a ...
3
votes
1answer
69 views

Remove any file that is not a folder

I have a complex directory in my work and another person needs it's structure. Having so many directories, instead of manually documenting, he insisted just duplicate that folder, then remove all the ...
0
votes
0answers
42 views

windows curl --compressed : unrecognized command

I found the SAME problem: (si I know it can be duplicated) Curl Compressed Command not Recognized in Windows However no one of these solutions works for me (win7 / 64bits) When I use without the --...
0
votes
0answers
18 views

Perform a compressed backup of encrypted devices?

I'm looking for software that would do something like this for me: Read disk's partition table, find LUKS-encrypted partitions, Decrypt the partitions, fill the empty space with zeros, Back up the ...
0
votes
1answer
215 views

How to recover files from the compressed NTFS partition?

One of the NTFS partitions was compressed with the tool implemented in Windows 7, available in the partition properties window. Later, one of the folders has disappeared. I was trying to use Piriform ...
-5
votes
1answer
33 views

How do I email folders containing multiple documents?

I have a folder with 6 documents in it. If I try to email the folder, my emailer will not accept it. How do I work around this?
-1
votes
1answer
82 views

Photoshop saves images larger than they were before

For some weeks I am wondering why jpg files I save with Photoshop are extremly big like a 300 x 300 image is around 600 KB even when I reduce its quality all the way down to 0. Its all in RGB 8 Bit so ...
0
votes
1answer
389 views

compress file using command line windows

I am looking for a command line command to comress a file. I want to compress each file individually to filename.zip. all the methods that I found including: http://exchangeserverpro.com/powershell-...
0
votes
1answer
85 views

7zip tries to compress files and folder outside of the path

I use the command line of 7zip, 7za, to compress a folder, on Windows web server 2008 R2. 7za.exe a -tzip -r %nome_file% "C:\inetpub" I expect it to compress everything inside the folder "inetpub, ...
1
vote
0answers
351 views

Does any linux disk format support transparent folder compression? (Like NTFS)

I feel like I could use transparent, seamless folder compression. One way to achieve this, I think, is to compress normally, and mount an archive with Nautillus. AFAIK. you can run programs from the ...
0
votes
1answer
72 views

disable Compress old files checking in Disk Cleanup in Windows XP

On an OS drive with approx 168K files, 27K folders of approx 28GB, that include OS (Windows XP SP3), drivers and a bunch of large applications such as Visual Studio, MS Sql Server, MySql, Java, ...
1
vote
0answers
97 views

How to get uncompressed content when using recursive wget?

i am downloading many single pages with all static content (js, css, imgs...) via wget recursive. It showed up, that served content, which was compressed (gzip), is stored by wget in compressed form. ...
0
votes
1answer
97 views

NTFS File Compression Issue

I have several hundred photo files that were inadvertently moved from a Windows NTFS formatted, compressed external drive, to a second external drive that was formatted by Mac OS X. The move was ...
0
votes
1answer
77 views

Video compression size s and codecs from JPEG

I am building a data logger with 3 cameras which output as jpeg frames (o.79MB/jpeg @24bit/pixel) at 24 frames per second. I want to take these images and convert it to a video. Each For the video I ...
0
votes
0answers
11 views

pak.ngc files? How to axxess

Used the filesystem on Wiiscrubber to pull out the whole file partition which contained many model files but they are embedded within a file type that hasn't been widely asked about at all. All I am ...
0
votes
1answer
757 views

How to compress an .avi video to 10% of its original size using ffmpeg?

I have a video file that is 15 seconds in length and 465,195 KB. I would like to reduce it to somewhere around 46,000 KB. Is there an easy way to do this. I have tried the largest allowed bitrate ...
1
vote
1answer
280 views

how to set automatic NTFS LZX compression on new files

I know it is possible to compress files on the commandline with LZX: COMPACT /C /S:E:\Backup /EXE:LZX But i would like to do that BEFORE the files gets written on the disk. If i enable compression ...
1
vote
0answers
42 views

Why is zip default compression on Mac [closed]

Mac is based on Linux so why would it use zip as default compression, if zip stores MSDOS file attributes. Which is more efficient - tar or zip compression? What is the difference between tar and ...
0
votes
1answer
48 views

using compressed (.gz) files with command line scripts expecting uncompressed files

In order to save disk space, I've gunzip-ed a lot of my files that I regularly use. What is a best-practice way to still use the .gz version of these text files with, say, python scripts? More ...
0
votes
1answer
1k views

Zip/unzip my directory on windows 7 cmd

I want to zip a directory containing many types of files and many sub-directories in it. I tried: compact /c file But I did not see anything. Next I found about zip/unzip command and tried: zip ...
0
votes
1answer
27 views

An archiving strategy that will allow me to view file contents without uncompressing to disk

I am running in Unix. I have a folder, which has a set of folders and text files under it. I wish to archive this into a single compressed file. However, through standard Unix commands, I'd like to ...
2
votes
1answer
23 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?
0
votes
1answer
832 views

Recursively compress files in a directory and subdirectories using command line “zip” tool in Mac OS X and exclude .DS_Store files from ALL subfolders

I'm trying to create a ZIP file using the command line zip tool that comes with the Mac OS X Terminal. I want to recursively compress the contents of the current folder but excluding .DS_Store files. ...
1
vote
1answer
184 views

How do you know the size of a 7zip compressed file?

With an archive file, I can only ever find the size of the file before compression, its original size, which I know. What about the size of the new, smaller compressed size?
2
votes
1answer
148 views

NTFS compression ate all disk space with no possibility to recover

To increase available space on a HDD (Windows Server 2012 Standard x64), I tried to enable NTFS compression on that drive. While doing the compression, it ran out of available space (despite having ...
2
votes
0answers
43 views

Zipping a text file with sha256 hashes seems too efficient

I have an ASCII-encoded text file where each line has the following structure: XYplorer nn.nn.nnnn [yyyy-mm-dd hh.mm.ss] [S256 S256].zip ↑↑ ↑↑ ↑↑↑↑ ↑↑↑↑ ↑↑ ↑↑ ↑↑ ↑↑ ↑↑ ↑64× ↑64× so a ...
0
votes
1answer
322 views

7zip: compress and copy to destination folder

I am trying to do the following: command line compress a file from C:\TestFolder\file.txt (source location) and on the same command or bat file put that compressed file in (a destination folder) C:\...
0
votes
1answer
54 views

How to search for a file that is compressed on a external drive from my mac?

My hard drive was from my Mac. I replaced it with a new hard drive. I was able to dump all the data from the damaged drive onto an external drive. The dump separated some of the files into Word docs, ...
0
votes
1answer
46 views

GPG with tar.gz at the same time without the full path being packed

I would like to compress and encrypt a folder: tar -cz "/path/to/the/folder/" | gpg --encrypt --passphrase "password" --recipient "mail@mail.mail" > "/destination/package.tar.gz.gpg" When I ...
0
votes
0answers
42 views

LAME doesn't compress MP3 anymore

(I'm running Ubuntu 14.04) Until a while ago the following command used to work fine for compressing MP3 files: find . -iname '*.mp3' -exec sh -c 'lame -b 160 "$0" "$0"-160 && mv "$0"-160 "$0"'...
2
votes
0answers
136 views

Disable memory compression in Mac OS X for specific application?

Is there any way to disable the memory compression in Mac OS X for a specific application? I read how to disable it in general at Disable compressed memory in Mac OS 10.9 Mavericks? , but in my case ...
0
votes
1answer
39 views

How to compress an encrypted partition or drive in Windows?

Could someone let me know is there any effective way to compress an encrypted drive or partition in Windows to reduce its size ? Thanks
-1
votes
1answer
273 views

How can i compressed(winrar) a file using command prompt and the file name of the .rar is the same with the file

i have a autoback.bat file that will automatically backup my database and compress in using winrar application. the problem is i cannot create a rar file that is the same filename of my database. for ...
3
votes
0answers
240 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 ...
-3
votes
1answer
171 views

Why youtube compression algorithm doesn't work well for Minecraft videos?

Minecraft videos have very small entropy : I can play hours to minecraft online exchanging only tens or hundred MB of data with the server, this is an entropy upper bound for Minecraft videos. However,...
0
votes
2answers
718 views

What happened to .gzip option in 7-zip?

I am not sure if this is just a coincident or not but I have recently upgraded my OS to Win 10. I noticed only now (after the upgrade) that the .gzip archive format is not available in 7-zip anymore....
0
votes
0answers
54 views

How to change context menu option for 7zip?

I work a lot with .gzip format and I am wondering if there is a way to change the default "Add to" format in the context from .zip to .gzip.
1
vote
1answer
89 views

how to achieve same compression in linux and windows

I have a example.jar file. I'm trying update a class file in the jar. when I'm packing the class file using jar or zip utility(command line-linux) I tried : jar uf my MyJarFile.jar ...
0
votes
0answers
38 views

Why am I encountering 'Error decoding stream footer' when decompressing using `pixz`?

I compressed a file using tar -pcv input_dir | pixz 8 -p8 > output.tar.xz. When I try to decompress or list the files using pixz -d and pixz -l i encounter the error Error decoding stream footer. ...
0
votes
1answer
25 views

decompress multiples pdf files without using tmp files?

I have more than 100.000 pdf files I want to decompress it, then recompress theme all in one archive file to save space. all i found is: ls | xargs -P 4 -n 1 -I {} qpdf --stream-data=uncompress {} /...
1
vote
2answers
122 views

To open lrzip-compressed in Debian 8.1

I downloaded the SageMath jessie package here but I cannot open it. I get the warning in ArchiveManager Could not open this file type There is no command installed for Tar archive (lrzip-compressed) ...
8
votes
2answers
6k views

How do I use the Google data compression proxy on Firefox?

I am using GNU Icecat (GNU version of Mozilla Firefox) on Trisquel GNU/Linux. In order to minimize/optimize data usage while web surfing, I want to use Google's data compression proxy. So, how do I ...
1
vote
1answer
86 views

rar - command line switch for exclude compress but store?

Assuming I have few files like : --- +Royi | +---1.txt +---2.txt +---3.Avi +---4.mp4 +---5.docx looking at : rar a -r -m1 Royi myArchive.rar This will shrink all ...