According to experts from WinRAR and PeaZip , this "solid piece" approach offers specific trade-offs:
The phrase appears to be a technical description of a compressed archive, specifically a "solid archive" created using the RAR format . Technical Breakdown
: A solid archive is a special compression method that treats multiple files as a single, continuous data stream. Why use a "Solid" format?
: This is the filename, where ".rar" is a proprietary archive format developed by Eugene Roshal.