VirtualBox supports a subset of read-only DMG files for CD/DVD images, but not for virtual hard disks. Tgz File Extractor The “tar” is a file archiving technique which combine multiple file into single file archive.
| Name | TGZ | ZIP |
| Full name | TGZ, Gzipped Tar File | ZIP - ZIP Archive |
| File extension | .tgz | .zip, .zipx |
| MIME type | application/gnutar, application/x-compressed | application/zip |
| Developed by | Unknown | Phil Katz, PKWARE, Inc. |
| Type of format | Archive | Data compression |
| Description | The Gzipped Tar File (TGZ) file extension can best be explained by calling it similar to a traditional zip file. However, this type of file extension has the ability to handle files that are much larger than standard zip functionality will allow. These are also sometimes known as gzip files. Because of their origination, TGZ files can easily be handled and extracted when you are using a Mac or Linux operating system. However, Windows does not have the ability to handle TGZ files without some help. On a Windows computer, you will either have to convert the TGZ file or install an app on your PC. | ZIP is an archive file format that supports lossless data compression. A .ZIP file may contain one or more files or directories that may have been compressed. The .ZIP file format permits a number of compression algorithms, though DEFLATE is the most common. |
| Technical details | The TGZ file format was originally created by both Mark Adler and Jean Loup Gailly in the early 1990’s. It was specifically created for use on the GNU project. The most recent update took place in June of 2013. The file format and associated software application was developed to allow for file compression and decompression of files that are very large. While similar to commonly used zipped files, a TGZ extension can handle files that are much larger. Another difference is that zipped files can include multiple files in their compression, while a TGZ is just the compression of a single file that is very large. | ZIP files are archives that store multiple files. .ZIP allows contained files to be compressed using many different methods, as well as simply storing a file without compressing it. Each file is stored separately, allowing different files in the same archive to be compressed using different methods. |
| File conversion | TGZ conversion | ZIP conversion |
| Associated programs | Smith Micro Stuffit Deluxe 2010 (Windows, Mac), WinRAR 5 (Windows), Corel WinZip 18.5 (Windows), 7-Zip (Windows), Zipeg (Windows, Mac), Incredible Bee Archiver (Mac), Tar (Linux), Gunzip (Linux), Pkgtool (Linux) | Microsoft Windows, WinZip, WinRAR, IZarc, Info-ZIP, 7-Zip, PeaZip, B1 Free Archiver, DotNetZip. |
| Wiki | https://en.wikipedia.org/wiki/Gzip | https://en.wikipedia.org/wiki/Zip_(file_format) |
Difference Dmg Vs Tgz File Format
- This is a comparison of the deb, rpm, tgz, and slp package formats, as used in the Debian, Red Hat, Slackware, and Stampede distributions, respectively. I've had some experience with each of the package formats, both building packages, and later in my work on the Alien package conversion program.
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- The main difference between this sort of setup and that on Windows is that Unix and Linux treat archiving and compression as two distinct steps. The.tar file holds all the other files, and compression is then applied to that.tar file. Suffixes like.tgz and.tbz are shorthand for.tar.gz and.tar.bz2, respectively.
HI Pat,
From Wikipedia: A file with the extension .dmg (an abbreviation for disk image) uses a disk image format commonly found on Mac OS X. The format allows secure password protection as well as file compression and hence serves both security and file distribution functions. Its most common function is the distribution of software over the Internet. When opened, DMG files are 'mounted' as a drive within the Finder.
From: Wikipedia .cdr and ISO
ISO image
Filename extension .iso
Uniform Type Identifier public.iso-image
Type of format Disk image
Standard(s) ISO 9660
An ISO image is an archive file (a.k.a. disk image) of an optical disc using a conventional ISO (International Organization for Standardization) format that is supported by many software vendors. ISO image files typically have a file extension of .ISO but Mac OS X ISO images often have the extension .CDR. The name 'ISO' is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image can also contain UDF file system because UDF is backward-compatible to ISO 9660.
Carolyn 🙂
Message was edited by: Carolyn Samit
From Wikipedia: A file with the extension .dmg (an abbreviation for disk image) uses a disk image format commonly found on Mac OS X. The format allows secure password protection as well as file compression and hence serves both security and file distribution functions. Its most common function is the distribution of software over the Internet. When opened, DMG files are 'mounted' as a drive within the Finder.
From: Wikipedia .cdr and ISO
ISO image
Filename extension .iso
Uniform Type Identifier public.iso-image
Type of format Disk image
Standard(s) ISO 9660
An ISO image is an archive file (a.k.a. disk image) of an optical disc using a conventional ISO (International Organization for Standardization) format that is supported by many software vendors. ISO image files typically have a file extension of .ISO but Mac OS X ISO images often have the extension .CDR. The name 'ISO' is taken from the ISO 9660 file system used with CD-ROM media, but an ISO image can also contain UDF file system because UDF is backward-compatible to ISO 9660.
Carolyn 🙂
Message was edited by: Carolyn Samit
Difference Dmg Vs Tgz File Extension
Dec 3, 2008 1:30 PM