CSS-encrypted VOBs	Unencrypted VOBs
When burned onto a "professional" DVD	Play only in licensed players; cannot be decrypted by unlicensed players (unless CSS can be broken) [confirmed by DVD CCA court filings]	Are considered non-copy-protected and play in all players [confirmed by Jon Johansen]
When burned onto a "consumer" DVD	Are invalid (lacking necessary title key) and do not play anywhere [asserted by some popular overviews of DVD technology]	Are considered non-copy-protected and play in all players [speculation, based on analogy; otherwise, consumers would be unable to make DVD Video discs under any circumstances]
When copied onto a hard drive or other medium	Cannot be decrypted by unlicensed players (unless CSS can be broken); are ignored by licensed players; thus, do not play anywhere [confirmed by Schumann's second declaration]	Can be played by unlicensed players or by licensed players [LiViD project, Schumann decl.; note that implementing this doesn't require anything even alleged to be a trade secret]