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Frequently Asked Questions

Why are GZIP-compressed BXML files around the same size as GZIP-compressed XML files?

Welcome to CubeWerx
The BXML format and the CWXML library are aimed at optimizing parser time and not compressed-document size. In fact, CubeWerx results show that the compressed file is usually around the same size for both XML and BXML. The only files that are significantly smaller are dense-numeric ones that are written properly, since GZIP is particularly bad at compressing dense numerics. However, one thing to note is that a BXML file is about half the size of the XML file (give or take) before compression.
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Can Opera browse compressed pages using gZip encoding?

Opera 5 for Symbian: Browser functionality
No, unfortunately Opera 5 for Symbian does not inherit this functionality from the desktop versions. It can only interpret and display pages sent as normal, uncompressed ASCII text. Similarly, Opera 5 only includes support for standard markup languages and protocols such as HTTP, HTML, WML, etc.
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How can I create TAR.GZ or TAR.BZ2 archives (compressed files)?

PowerArchiver 2007 - Frequently Asked Questions
When creating a new archive, first choose TAR from "Save as Type". While adding files to that archive, choose "GZIPTar" or "BZIPTar" from the compression drop-down in the Options tab.
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How much can the files be compressed?

Secure world of IT Product and Signage Displays
In general, text files (.txt) can be compressed to 1/3 of their original size; while execution files (.exe) can be compressed to 1/2 of their original size.
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Is there any documentation for the skin XML files?

FrequentlyAskedQuestions - MediaPortal Wiki Documentation
Skin graphics and XML files are cached, just delete the packedgfx*.* files in the \MediaPortal\cache\skin folder . They will be rebuilt on the next MediaPortal start. Or remove the whole \MediaPortal\cache\skin folder, this will ensure graphics and fonts are rebuilt.
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Should I zip (arj, rar, jar, gzip etc) my files before uploading?

Sound File Formats
In general, no. Compression is pretty useless for MP3s because they're already compressed. There are occasions, due to posting difficulties, when people will break their MP3s into distinct sections using one of these formats. But for the most part, you'll just post them as MP3s.
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Why not prefix the BXML elements with a size for efficient data skipping?

Welcome to CubeWerx
You have an interesting idea about allowing unwanted elements to be skipped over, but we don't think it can be implemented practically as you describe. In order to prefix the total length of the body to an element, you either need to buffer the whole body before emitting it or you need to leave a 'hole' for the length as you are writing and then seek() back to the position and fill it in when you have the information.
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What about any other XML files I find?

External Software (Media Server)
All other xml files will be created on the fly by the Tomcat server, and will be overwritten on a regular basis.
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FAQ | Ivy
You write ivy files to describe the dependencies of your module, independently of how you retrieve them. Then you configure ivy to indicate where it can find your dependencies. Thus you can easily share your ivy files, even if you have internal dependencies which are not resolved the same way in your environment as in the target development environment.
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Can I use compressed versions of the help files?

VIM FAQs - WikiFAQ - Answers to Frequently Asked Questions (...
For those that are really short on disk space, you can compress the help files and still be able to view them with Vim. This example assumes you have gzip on your system. You do have it, don't you? :-) If not, you will need to adapt it to work with a different compression utility. 1. Compress all the help files: gzip doc/*.txt. 2. Edit doc/vim_tags (doc/tags in 5.0) and do :%s=\.txt<Tab>/=.txt.gz<Tab>/= 3. Add these lines to your .vimrc: set helpfile=<dirname>/vim_help.txt.
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How much are my files compressed before being uploaded?

Backup 24/7 Online Backup Solutions - FAQ
The compression ratio of your files depends upon their content, however most documents are compressed to 25-50% of their original size.
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Why aren't some files compressed very much?

Secure Backup System (SBS)
Some types of files can be compressed much more than others. For example, *.txt and *.bmp files can be generally compressed by up to 96%. Various multimedia files (e.g. *.gif, *.jpg, *.wma, *.mpg files) are already highly compressed because the standards for these file types specify efficient technique to compress the content. Once a file has been compressed, it typically cannot be compressed again to any significant extent.
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Do the files change when they are compressed and then decompressed?

Frequently Asked Questions
No. They are absolutely identical, byte for byte, to their pre-compression state. Even the file date and times remain the same.
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What are compressed or archived files?

Indiana Spatial Data Services - gis.iu.edu
Compressed or archived files (*.tar, *.zip, *.tgz) may contain many separate files in one large archive. Before all the separate files and programs can be read or run, an archiving program must be used to extract the files from the archive. More from IU Knowledge Base The IN DRGs are stored as compressed "*.tgz" archive files. Each archive is comprised of several files which are combined with the "tar" command and compressed using the GNU "gzip" utility.
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How do I work with compressed (zipped) files?

Colorado Technical University - Help Desk
To create a zipped compressed folder: Open My Computer. Double-click a drive or folder. On the File menu, point to New, and then click Compressed (zipped) Folder. Type a name for the new folder, and then press ENTER. Note: You can also create a zipped compressed folder by right-clicking the desktop, pointing to New, and then clicking Compressed (zipped) Folder. To extract files from a zipped compressed folder: Open My Computer and then locate the compressed folder.
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Can I submit compressed files to the server?

NEOS Server FAQ
Yes! NEOS does not allow you to compress your entire submission, but if you want to compress the files individually (to accommodate large data files, for example), you can submit them via the Web or Submission Tool interfaces. The NEOS Server checks each file to see whether it is compressed, so you can compress any data for which the interface has a Browse option. The compression types the Server supports are standard deflation for .gz,.z,.zip, and .Z files.
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How do I handle archives and compressed files?

Linux Nano-FAQ
To extract a plain tar archive, you type tar -xf filename.tar. To extract a gzip (.gz) compressed tar archive, tar -xzf filename.tar.gz. Under Windows, you usually use ZIP (PKZip, WinZip) for making archives of files. Under Linux, there are two programs for this task. One program, called tar, is responsible for packing multiple files together into one file. It doesnā??t do anything else, not even compression. For this you use a second program, usually gzip or bzip2.
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Why some AVI files cannot be compressed into MPEG?

Since the AVI format does not have a universal standard, it can use different compression methods ? some of which cannot be processed into MPEG. This is true not only with "honestech MPEG Encoder" but also with most of other MPEG encoder products. Therefore, if the file is not in a generally used AVI format, it might be impossible to convert it to MPEG. Note: If you encounter the message "input avi audio must be uncompressed PCM!" , it means that the AVI file should not contain compressed audio.
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Can I use compressed files in my portfolio?

Journalism Jobs - My NetClips
Due to the site's business model, that is not possible. The subscription structure is based in part on space requirements. The more space bought, the more the subscriber is charged. Since allowing compressed files would defeat the purpose of charging Subscribers for the space they are using, we regret that we do not allow the use of any compressed files.
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Can less view compressed files?

LESS
Less provides a mechanism to preprocess the file being viewed. The preprocessing can decompress a compressed file, or do other arbitrary processing on the file contents. However, each user must specify their own preprocessor. See the INPUT PREPROCESSOR section of the man page for more details. Less does not provide any default preprocessing, because the types of compressed files likely to be viewed depends on the work habits of the particular user.
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How to I get to the files that are compressed in a zip file?

Fortney & Weygandt FAQ Page
You will need to unzip the zip file to get to the files within it. To do this, double click on the zip file. Select "extract files". You will be prompted for a location to store the files. Once they are unzipped, you have access to each individual file. Note: In order to do the above, you will need a program that unzips zipped files. pkzip/pkunzip is one such program and is free to download and install on your hard drive. To get the Windows version click here. For the DOS version click here.
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What size compressed air line do I need?

FAQ's
The recommended compressed air line size, from the compressor to the dust collector, is ¾" diameter for the first 75' of pipe with ¼" diameter increases for each additional 50' increment. Top
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How large are compressed video files?

Frequently Asked Questions | Digital Commons at Penn State
We've put together this reference table to illustrate the amount of space a streamed video takes up on a server. Keep in mind that many factors such as the data rate, the length of video, and the image size can affect the overall size of the files and these numbers are meant for comparison only. The following table, with the exception of full DV, is for Quicktime (.mov) video using the Sorenson compression format (web streaming standard).
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Are files encrypted and compressed on the fly?

Omnidrive :: Free Centralized Online Storage, Sharing and Pu...
Files are encrypted and compressed on the server in a process that is completely transparent to users. In future versions of the desktop clients, files and content will be encrypted on the client prior to being sent to the server. This ensures a high level of security. All communication with the server is over a secure and encrypted connection. Some beta users currently only have normal HTTP, but we will be moving all of your accounts over shortly.
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Can I archive MP3 or other compressed music files ?

Zero One Audio
The Ti48 was designed to archive only CD quality data (16 bits / 44.1kHz) and then to replay this with upsampling in order to extract the most out of the CD audio format.
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Can I make compressed backup files with Heredis?

My Heredis
Furthermore, with Heredis, you can create a compressed back-up file directly to another computer drive or make a duplicate on your own hard drive. Back-up files have a .bkh extension and may be directly opened from the menu File > Backup > Restore previous backup.
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What is XML?

Forum FAQ - GameDev.Net Discussion Forums
XML is a meta-language optimized for use on the Internet. A meta-language provides a way to create other languages or vocabularies. Many applications use XML as a way of sharing data between otherwise incompatible systems.
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Is the data stored in Tamino XML Server compressed in any way?

Software AG - XML Starter Kit 4th Edition
When attempting to install the new XML starter kit I get an error during the System Management Hub installation. Now when I try to navigate to the Tamino branch, I receive the following error message: (ARG2007) "The user has not enough rights to execute this command".
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