this post was submitted on 05 Jan 2026
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Blu-ray hits 20 years old, and it isn't dead yet — optical disc format was introduced to the public at CES 2006 (www.tomshardware.com)
submitted 4 months ago by Rekall_Incorporated@piefed.social to c/hardware@lemmy.world
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Major releases still coming out, and enthusiasts collecting discs.

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[–] Eheran@lemmy.world 1 points 4 months ago (1 children)

The jump was/is the same: Same quality with halve the bitrate.

[–] Rekall_Incorporated@piefed.social 3 points 4 months ago* (last edited 4 months ago) (1 children)

Got to disagree with you on that one. It was universally true for the move from ASP/H263 to AVC/H264. It's not the case with H264 to H265 on a universal basis.

You can forget about such results if you're dealing with grain (and preserving it). Things are a bit better with "complex" content (oceans, snow storms etc), but you'll be struggling to get 50% space savings (more so with pre 2005 content).

The general bitrate level is also a massive factor.

Low bitrates, sure, even more than 50%. But you'll still be dealing with artifacts.

Medium to high bitrates (i.e. targeting a "near transparent" encode), you often won't be able to replicate a H264 encode at 12 Mbps (1080p 24 FPS) with a 6 Mbps H265 encode. Sometimes it works, but often it doesn't; I find you often need to go with 9-10 Mbps.

Haven't tried H266/VVC. For AV1 the x4 increase in encode times didn't seem to be worth it at high bitrates. Although for low bitrates AV1 seems to be modestly better than H265 (for far worse encore times).

This is all for CPU encodes at the "VerySlow" preset (1/2 for AV1 if I remember correctly).