Unverified50% confidenceFactExact time
The Stack company (Stacker) combined tar's container idea with LZ compression to launch Stacker, which first compresses files and then packs the compressed data into a virtual disk container, transparent to the user, effectively doubling disk capacity.
1
Sources
50%
Confidence
Long-term
Relevance
10/20/2026
First Seen
Sources
Reddit User Tried to Compress System Drive with WinRAR—and Nearly Disaster Struck
youtubeLinus Tech Tips10/20/2026
Related Entities
Related Claims
UnverifiedThe core idea of the tar file format is to pack many small files into one large container to share sectors and reduce internal fragmentation; it does not itself change the data size, and its random-access performance is poor.67% similarUnverifiedTraditional extraction methods require double the disk space because the archive and the extracted files must coexist on disk simultaneously.63% similarUnverifiedCopy-on-write mechanisms are widely used in file systems (such as ZFS snapshots), container images (Docker layered file systems), and cloud object storage.63% similar
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