Linked by Thom Holwerda on Mon 2nd Nov 2009 23:20 UTC
ZFS has received built-in deduplication. "Deduplication is the process of eliminating duplicate copies of data. Dedup is generally either file-level, block-level, or byte-level. Chunks of data - files, blocks, or byte ranges - are checksummed using some hash function that uniquely identifies data with very high probability. Chunks of data are remembered in a table of some sort that maps the data's checksum to its storage location and reference count. When you store another copy of existing data, instead of allocating new space on disk, the dedup code just increments the reference count on the existing data. When data is highly replicated, which is typical of backup servers, virtual machine images, and source code repositories, deduplication can reduce space consumption not just by percentages, but by multiples."
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Member since:
2007-03-26
I guess that depends on the codec used.
I thought many MPEG codecs didn't have a timestamp as such and used a form of encoding that allowed an MPEG file (be it a video container file or an MP3 audio file) to be chopped in to parts at any random point and each of the parts can still play individually (much like the myth about worms ability to be chopped up and each part becoming alive)
Besides, your point is only valid for shows that have a pre-opening credits teaser rather than those (typically older) shows that always opened with music and credits.