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Old 16th March 2019, 15:27   #2  |  Link
sneaker_ger
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Join Date: Dec 2002
Posts: 5,565
There is a slight compression hit. Slices are supposed to make multi-threading easier. 4 slices are required by the Blu-Ray specs for level 4.1. I know some older decoders (notably Playstation 3) can profit from slices but modern decoders usually don't need them. Also, many people only encode to relatively low bitrates (much lower than Blu-Ray) so then even older decoders usually don't need them. Blu-Ray level 4.0 (up to 25 Mbps bitrate) doesn't require slices.

So if you are encoding to high bitrates (> level 4.0) and have some older decoders you can activate 4 slices. Otherwise I would use only no (1) slices. Haven't seen any decoder that cannot decode slices.

Last edited by sneaker_ger; 16th March 2019 at 15:29.
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