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Comentado en los Estados Unidos el 13 de marzo de 2025
TLDR (Too Long, Didn't Read): if you want to record video, then you need a card with a good VPG rating that's above your maximum record speed, like these cards. Anything without a VPG rating isn't reliable, and will almost guarantee you dropped frames, audio that isn't synced, etc.--- DETAILED STORY ---I have a BMPCC 6k G2. About a month ago, I used my ~3500 MB/s write speed 1 TB Samsung 980 PRO SSD with my camera on an important video I was making. It was an overhead shot on a C-stand about 3 feet above the subject. I spent about 5-6 hours setting up, recording, and tearing down, thinking all was well.I was the only one there, and my monitor wasn't on.I climbed a stool > hit record > climbed down > and the next 10 most important minutes only recorded about the first 5 seconds because I forgot that I set it to stop recording if there was a dropped frame. Even worse, I was only recording at about 81 MB/s too (6k, 12:1 compression), which seems like it should have handled that with no problem because of the 3500 MB/s advertised write speed.That really pissed me off because I had to do everything all over again. Only 5-6 hours was wasted, but who wants to deal with stuff like that? That would be even worse if it was a paid gig.I then learned about the VPG rating and why it matters. The long story short of it are these 3 things...1) VPG rating means "Video Performance Guarantee". Which means that things with a VPG rating have undergone heavy tests to GUARANTEE A BARE MINIMUM WRITE SPEED under heavy circumstances that they normally wouldn't be put under (i.e., they're battle tested). Heavy emphasis on BARE MINIMUM... So if you're making a video at a resolution that writes at 250 MB/s, and the VPG on your card is 260 MB/s, then it can handle that without any dropped frames, etc.2) Hard drives meant for computers (the 1 TB SSD in my case), are meant for computers. Not cameras. They are built in different ways on purpose, because they have different requirements. The amount of data they can read / write can vary all the time. They have a "burst" write speed, but that's for a limited amount of time. And mine did not have a VPG rating, because it's meant for a computer... SSD's can also have overheating problems if they're pushed too far, which can force them to throttle the amount of data that's allowed to be written to it. Meaning, you'll get dropped frames, among other problems. So if you want to use a hard drive for a camera (like an SSD), then you need one that's built to handle what a camera can do, and do it consistently. It must have a VPG rating, otherwise you're likely to get dropped frames, audio that isn't synced, etc. I also saw some guy on youtube with this same SSD problem, and he showed it. He recorded some corporate interview, and like 30 minutes or so into it, it had dropped frames, audio that didn't sync, etc. Because of that, he said he'd never use SSD's again on a bmpcc. For that reason, he only used CFast cards from then on, and has never had a problem.3) Because of all the above, I bought this CFast card. When I got it, I was surprised that the VPG rating was 260 MB/s, instead of what's shown on the amazon listing (180). Which is awesome. So I remade my video, did it with an even better codec (6k, Q5, 65-162 MB/s), and it recorded everything over the next 30 minutes or so with no dropped frames, no bad audio, etc. It was perfect, and I don't regret buying this.You guys should really update your amazon listing images and title, so it correctly shows that it's better than advertised.--- SIDE NOTES ---Blackmagic (the brand of my camera) advertises to only use specific media drives for recording. The reason I chose to not go with any of their suggestions, and instead try this PixelFlash one, are because one of the SSD's they said would be okay (which was a samsung T5 / T7) are both worse than the one I tried using above. Plus, the Samsung SSD they suggested (T5 / T7) doesn't have a VPG rating. Also, the CFast cards they suggest all have a VPG rating like 100 MB/s LESS than this PixelFlash one, and they're about 2x the price. So it was a no brainer to get this.I'm no expert on the VPG rating, but logic tells me that the advertised speed of 575 MB/s for these cards is the burst speed, just like the burst speed of my SSD above (3500 MB/s). But the VPG is what really counts, because that's the BARE MINIMUM WRITE SPEED. So if you're making a video in a resolution the records at a steady 575 MB/s, and your media card has a VPG of 260 MB/s, but can handle a burst speed of 575 MB/s... Then you're probably going to get dropped frames, among other problems, at least at a certain point. Only solution = record it in a compression that's under the VPG rating. In my case with this CFast card, it's anything under 260 MB/s, and I have a lot of flexibility for that due to the compression and resolutions my camera allows.My SSD also still works fine, I'm actually editing on it, but it didn't record video the way I was hoping. And to be fair to my SSD, I did format it before using it, though not on the same day, and I definitely did delete some files in there that looked useless to me, although the folder structure was the same. But even then, it would still record only short bits for varying lengths of time after that. Maybe if I hadn't deleted those files it would have worked fine??? But I'm doubting that would have been an issue... Having this CFast card also declutters my camera since the SSD isn't sticking out with an extra cable, which is really nice.