[Antón Davila]

Thanks Steve,
language is a wall sometimes. I’m really sorry about my bad English language… but, or I don’t understand you, or you don’t understand me. Please, apologize me, if when expressing myself I could look rude or so: it’s not my intention.
I find that the fps are on the discussion, because of the point I want to go to. Letting apart the benefits of recording at high frames per second (panoramics, slow motions,…) if only recording static clips at same resolution, same camera, same lens… just switching between 25fps and 50fps, and of course, thinking that we are recording at CBR (those 24fps and 28fps are VBR):
1 minute clip is a 180Mb file (at 24Mbps).
1 minute clip is a 210Mb file (at 28Mbps).

This means that in the first clip, those 1500 raw frames are compressed in 180Mb, and in the second clip, those 3000 raw frames are compressed in only 210Mb.

So, does my approach make more sense now? Am I still wrong about my thinking?
Is there anybody who found a difference in terms of quality, between those two kind of settings?

Thanks again.

[Antón Davila]

Thank you for your answer, Steve:
then, if is about a compression question, can we set that in this case, the 28Mbps file have a bigger compression? In that case, the more compression, less quality?
I mean, maybe the 25 frames per second are less compressed than the 50?

Thank you!

[Antón Davila]

Thank you Steve,
but apart of the “looking”… what do you think about my question?

Thank you.

[Antón Davila]

Thanks for your answer Steve.
I understand about the filmic look,… but as I’m just want to know about recording quality, I’d like to focus on that question.
As far as I know (not much, sorry), the more bitrate, results in more quality (and bigger file). So, on same clip recorded at 1920×1080 and 25fps, a file with a bitrate of 24Mbps would be better quality than other at 17Mbps (we’re talking on same camera and lens), are you agree?
And, one minute clip file at 25fps it would be smaller size than the same minute recorded on same camera and settings, but at 50fps, are you agree?
Then, the only 4Mbps of difference between both (25fps vs 50fps) I find it weird. Why is this? is a codec’s limitation? Am I right if I think about a better quality on the clip recorded at 25fps (24Mbps) against the one recorded at 50fps (28Mbps)?

Hope I can explain myself, but sorry, but my english is not good 🙁

[Antón Davila]

Hi Rick,
to be honest, I expected a bit more on writing speed… but I’m in touch with the Sandisk team, and will see if can be improved. They told me about the TRIM… but now my case is up to a new level support and lets wait for they words.

I’ll let you know soon.

[Antón Davila]

Rick,
finally I bought the Sandisk Extreme 480…
Here are the Disk Speed Test screenshot, after installing it on a Sonnet Tempo SSD PCIe card (2nd Slot 2.0 16x), on my Early 2008 MacPro, with no TRIM.
Must say that from Sandisk they recommend the TRIM activated. After doing it, I’ve noticed that the performance is slightly worse.

Regards

[Antón Davila]

Thanks again Rick,
this is going to be a hard decision to take… hate feel like a Guinea pig with the new tech…

Thank you again, I really appreciate your help.

A.

[Antón Davila]

Also worry about if FCPX can “see” a SSD (or optical) attached to a PCIe card, as the Sonnet Tempo SSD.
As far as I know, FPCX do not let you work with an external disk…

This is a very important story too…

Regards,

[Antón Davila]

Hi Rick,
thanks a lot for your answer. That’s a very interesting information.
I must say that I already have 2 SSD’s. Both are Crucial: the old M225 on a Macbook Pro, and a M4 as main disk on my Mac Pro. No problems at all…
The fact that I have Crucial in mind, it’s because my experience with them is very good… but, the “writes” speed is really poor, and I need a good write speed: the Crucial M4 512Gb is around 260Mb/s.
I’ve been searching on forums, bloggers, etc, and it seems the Samsung 840 pro it’s the best SSD working with “incompressible” data. I haven’t found any comparison chart between the Sandisk Extreme (which is an excellent drive) and the Samsung 840 pro yet.
On the paper, Samsung wins,… but the Blackmagic recommendation it’s like “word of god”… I trust them more than any blogger, believe me,… but everybody says that the 840 pro it’s “the” SSD…

Don’t know what road to take…