The data compressed using the QuickCompression class produces unformatted, "raw" data, which results in compressed data that can't identify what compression method was used.  This means that if the compression method that was used is forgotten, it will not be possible to uncompress that data. In addition, the resulting compressed data is never validated, which means that if an error occurs during compression, you will not be notified. 

Therefore, rather than using the QuickCompression class, we suggest you take a look at the compression classes located in the Xceed.Compression.Formats assembly, such as the XceedCompressionStream class, which stores the compression method in the a header as well as computes a CRC for the data and stores it in a footer. When decompressing, it also validates the stored CRC with the decompressed data to make sure that the data is valid.

System.Object
   Xceed.Compression.QuickCompression

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

QuickCompression Members
Xceed.Compression Namespace