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Join Date: Jul 2000
Location: Northern Colorado
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Much depends on the quality of your speakers, amps, surround decoders, etc. If, say, you have a pretty cheap system then you may not hear much of a difference between standard lossy and lossless or uncompressed PCM soundtracks. It's much the same way between standard CD audio and DVD-Audio with 24 bit lossless sound or SA-CD's... if you have a good to great system the difference is easier to spot.
The new lossless formats and multi-channel PCM have been added because the new high definition disc formats have the storage and bandwidth capabilities (with Blu-ray even more so) unlike DVD's, not because movie theaters have changed over.
The only lossless or PCM audio capable commercial theaters are fancier IMAX or digital cinema theaters. However, due to lesser PA speakers and amps on some of these systems you might not hear that much of an improvement.
Listen up, studios! Just say "NO" to DNR and EE!!