WinRAR 5.20 5.21 Beta 1

WinRAR is an advanced data compression utility that supports a wide array of format including RAR, ZIP, CAB, ARJ, LZH, ACE, TAR, GZip, UUE, ISO, BZIP2, Z and 7-Zip. It enables you to create, organize and manage archives in a comfortable and quick manner.
Rich feature lineup

The complex compression algorithm it uses creates small archives, saving disk space and enabling faster file sharing. Audio and graphics files benefit from a special archiving algorithm, one that doesn’t make a compromise on quality. It includes Windows Explorer shortcuts for easy access and supports drag and drop as well.

WinRAR also provides possibilities to split archives into several volumes; this way, a large archive is divided into other smaller ones, which makes the perfect way to share huge files.
Advanced security and ease of use

In case you wish to secure your files, you can always protect your data with a password, while the 'Repair' function comes in handy whenever you try to fix a broken archive.

Besides the fact that it does a great job when it comes to compressing files, WinRAR also integrates dedicated features that allow you to manipulate archives with a single click. You can backup the files you're about to compress, you can test the archived files and you can even perform virus scans before decompressing, without putting the data stored on your computer at risk.
Fast and effective compression

During our tests, the compression and decompression process worked amazingly fast, and that should happen in your case too, at least if your computer is able to handle the task.

The only problems you could experience are strictly related to hardware resources, as working with 3 or 4 archives at the same time could be a bit overwhelming for slower computers.
An overall great package.