MediaZip is a Windows program that performs lossless compression/decompression and manages archives of media files (Sound and Picture). Welcome to the MediaZip home page.

MediaZip processes all kinds of media files independently of their specific format. It processes sound files (WAVE, AIFF), still picture files (BMP, TIFF, PCX) and movie files (AVI). You can even include in MediaZip archives other types of files like text files but the compression efficiency on those types of files is low, because the compression algorithm in MediaZip was designed specifically for media file processing.

MediaZip is a release of Future Algorithms.

 

 

Here is a list of the programís main features:

         High compression ratios. Values over 70% are not uncommon. This means that a 100 Mb file would take just 30Mb when compressed.

         Creation of archives containing any number of files. There is no practical limit to the size of an archive (except the size of your hard-disk).

         Works in batch mode. After defining the files to be processed, MediaZip can be left unattended, working in the background.

         Can split an archive into several files, a useful feature for Usenet posting and for e-mail file interchange. It can also split an archive into several volumes of removable media like floppy disks.

         Can control the access to an archive by using an Encryption Key.

         Can create self-extracting archives. This feature can even be used with split or encrypted archives.

         Can add an entire directory tree to an archive. The tree structure is faithfully reconstructed when the archive is decompressed.

         32-bit CRC control, to detect and prevent file corruption.

         Can automatically launch the application associated with a file.

         Drag-and-drop operation.

If you want to have a better idea of how MediaZip works, please take a look at the Operation Manual.

The most popular compression program around is probably WinZip. However, if you are familiar with this program, you will know that WinZip gives very poor results when dealing with media files. MediaZip works very much like WinZip but is especially adapted to obtain high compression ratios on media files.

When dealing with some types of files it is important to use lossless compression. That means that using MediaZip, after decompression, the resulting file is bit-by-bit identical to the original. There are programs that obtain higher compression ratios for instance on audio data but they use lossy algorithms and that may not be acceptable in some cases.

It is particularly important to have high compression ratios when distributing media files over the Internet. Because these files are usually very big (some are over 100 Mb), even a small increase in compression ratio will reduce drastically the download time, reducing at the same time the risk of server overload.

The compression ratio obtained by MediaZip depends basically on the amount of redundancy that the file has and the ability of MediaZip to extract that redundancy. The compression ratio ranges from a few percent to more than 80% in some cases. Of course if MediaZip is presented with a file that was compressed by a specific purpose compressor like MP3 or JPEG, MediaZip will not be able to compress the file further. However, there is nothing that prevents you from including those types of files in a MediaZip archive. In those cases, MediaZip just copies the file as is to the archive.

The MediaZip split feature comes very handy when distributing files via Usenet newsgroups. Or if you want to send a file by e-mail, as usually a mailbox may not have enough space for an entire file. In these cases you split a file into several small files (you control the size of each chunk), and then send them over to their recipients. The small files are then later joined together to rebuild the original file.

Another useful feature of MediaZip is the encryption of archives. By using this feature you can sell files over the Internet without you having to send a copy to each individual customer. Instead, you let the customer download his copy of the file and then, after registration, you send him the Decryption Key by e-mail.

The possibility of creating self-extracting archives may also prove very useful. With this feature, you can send MediaZip archives to someone that doesnít have MediaZip installed. You can even use the self-extracting feature with split or encrypted archives.

 


Download MediaZip

MediaZip is shareware; the registration fee costs US$ 25.00 (including p&p).

The trial version has the same functionality as the registered version, apart from one nag screen each time it finishes processing a file.

To register, please go to the MediaZip order page. Upon registration, you will receive by e-mail a registration key that will give you full access to the program.

To get the current version of MediaZip including the executable, auxiliary files and documentation, go to:

The MediaZip download page

At the download page you will also find instructions for installing and uninstalling the program on your system.

If you already know the program and you just want to know what is new in this version you can take a look at the MediaZip history.

 


Feedback

Comments, suggestions and bug reports are welcome and should be sent to fadevelop@clix.pt

 

 


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This page last modified 2002-10-22 - Copyright © 2002 ACE