(replying to Samuel, Go Canes, and Patrick)
On 9/17/2025 4:04 PM, Samuel Sieb wrote:
On 9/17/25 2:37 PM, home user via users wrote:
On 9/17/2025 1:11 PM, Go Canes wrote:
On Wed, Sep 17, 2025 at 12:51 PM home user via users
<users@lists.fedoraproject.org> wrote:
I think that ideally, long, high resolution videos would be better on
the NVMe drive, because it's faster. But such files are also a lot
bigger, and would quickly consume the drive's space. All the other
user
files being on the spinning drive should be fine. It's slower, but I
seriously doubt I'll notice.
Generally speaking I keep my videos and music files on a NAS.
However, I have a home theater PC that has a NVMe drive and a spinning
disk as well, and I keep some videos on the spinning disk on a
short-term basis. Performance-wise it makes no difference for
playback. Oh, and it is a *laptop* drive, so it isn't even the
fastest spinning drive. If I do any video editing I keep the video on
NVMe until I am done.
So this is good even for a full-length, 4K, 120 frames per second, at
least 30 bits per pixel (10 per color primary) video movie with 384
KHz surround sound?
Yes, even normal laptop hard drives could keep up with that.
On 9/18/2025 4:29 AM, Patrick O'Callaghan wrote:
> On Wed, 2025-09-17 at 22:38 -0400, Go Canes wrote:
>> On Wed, Sep 17, 2025 at 5:38 PM home user via users
>> <users@lists.fedoraproject.org> wrote:
>>> So this [spinning disk] is good even for a full-length, 4K, 120
frames per second, at
>>> least 30 bits per pixel (10 per color primary) video movie with 384 KHz
>>> surround sound?
>>
>> I have played 4K video off the laptop drive, but I can't say what the
>> framerate or bit depth was.
>>
>> I'm out of my depth here for that kind of video, but I think I would
>> be more concerned with the video hardware.
>
> The actual data rate will depend on the compression used in the source
> (all commercial videos are compressed). It's certainly not 4Kx120x30
> bits/sec. Even the fastest 16x Blu-Ray drive using a rotating optical
> disc is about half the data rate of a SATA interface.
Thank-you.
I did know compression is used, but I don't know the typical percentage
of reduction and how much spread there is in that. Uncompressed, I
estimated ~3.7 GB (or ~30 Gb) per second just for the video. That's a lot!
When I ordered my desktop, I was told by 2 different salesmen that cases
are no longer made with 5 1/4 inch slots. So I cannot do a blu-ray
drive with a SATA interface. I had to order an external drive, and
everything that I saw was limited to USB-2 connections.
--
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