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Cake day: July 1st, 2023

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  • AV1 and VP9 are likely going to be your highest efficiency “free” codecs. AV1 is the way to go if you mean free as in free open source. It’s not very likely to be implemented in many TVs or set-top-boxes, but VLC/ffmpeg will be able to decode any of these. Webm uses vp8 or VP9 which are “free”(made by Google) but it’s just more specific settings for sharing online/viewing in browser.

    H264/H265 has license fees for non-free software and hardware, but they will be your most widely supported option. H265 is approximately twice as efficient as h264 (meaning you can get the same quality of encode from half the file size).

    Regardless of preset I think you can get handbrake to encode something reasonable from any of these codecs. Especially with DVD video you’ll be able to crank through videos with modern high efficiency codecs


  • It certainly is. ISO 27001 is a framework, not very prescriptive at all. Basically an auditor will ask “how do you ensure data isn’t leaving your facility in the form of discarded hardware?” If you say “here’s a link to our media destruction policy. It says all drives are wiped according to NIST 800-88 cryptographic erasure. If that is not possible or not applicable, the drive is destroyed. Here’s our log of decomissioned equipment” chances are very good they’ll say “OK great let’s move on to the next one” with only minor followup questions.






  • Digital millennium copyright act. It effectively moved the burden of proof for copyright infringement from the copyright owner to the accused, short-circuiting the existing IP laws, among other things.

    It is where much of the drama around copyright online stems from. It’s used as a way to quickly stifle anything someone posts that’s something you don’t like.

    It made circumventing DRM itself illegal, even if you’re not breaking copyright by doing so (even if it’s for your own research or backups).



  • I know one of the advantages of mirrorless is the potentially shorter lens flange distance, so changing the lens mount makes some sense. But couldn’t there be a passive adapter (with wired passthrough) similar to a macro tube to use the old lenses? Maybe there is idfk.

    I expect mirrorless to continue to grow (at least with respect to DSLRs), and frankly I’m happy with that.

    As far as changing brands goes, I agree with that. There are a fair few good options in the mirrorless space and I daresay most of them aren’t canon




    1. RAID for uptime, backups for data you care about. RAID(1+) will keep your data online when a disk fails, but backups are the real way to keep data around if shit hits the fan. For a personal media collection, you might be better served with a non resilient RAID0 (total failure if one drive fails) with a backup around to recover from when that happens. If you do e.g. a raid5 you lose 1 disk of capacity in exchange for 1 disk of resiliency, raid6 same but 2 disks. That gives you some safety but there are a lot of instances where those raids don’t save you from losing all your data. If you buy 4x 18TB drives, you could have 36TB from the 1st two drives and then backup to the other two drives.

    2. There’s no specific type of drive to worry about unless you’re doing RAIDs especially with ZFS. Search shingle RAID rebuild for the biggest thing to worry about there.

    3. Almost always, yes. Slow drives throttle the rest.

    4. I’ve never used them but people say good things about synology most of the time. Everything comes with a cost and it’s hard to make any sensible recommendations without knowing your constraints; primarily your budget.