So do I. I only use SD cards and never had a problem with them.
Card Failure
- Thread starter Big Al
- Start date
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JerryF
Member
Wow sorry about your images. I have not had that occur yet and hope I never do. If these were important images did you try any recovery software first? Typically the files are all there but only the directory structure is damaged.
There are numerous software “solutions” available claiming to be able to recover lost images. If it’s the card directory that’s damaged , then it’s worth trying.
I hope you get your images.
In any event, don’t use that card again!
I hope you get your images.
In any event, don’t use that card again!
lancej
Member
So sorry to hear of your situation, like many others I have been there. Was it me, or was it the card, I never used it again and had to worry. I also sent it back with a personal note to the manufacturer and with a photo of all their cards I own as a loyal customer. They sent me a new card .
Big Al
New member
Yes, too late. Already did full format.
Big Al
New member
SanDisk Extreme PRO. I have had it about a year.
I have others who have encountered problems with that card in Z9 and Z7II I know some camera stores who quit carrying them. As others have noted I would recommend no longer using that card.
I have used Delkin Black for years had a few hiccups that I could work around with the Delkin CB express reader that was a nuisance.
I now switched to the new ProGrade CFexpress™ Type B 4.0 Memory Card (Gold) 512GB no camera made that can use the full write speed but then write speed and buffer in Z9 is still as fast or faster than Delkin Black was. They run cooler than many and are very fast to download using the Prograde CF Express type B single slot reader.
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JerryF
Member
Hold that thought on the ProGrade Gold V4 cards. I have one with the USB 4.0 reader. Mine claims a sustained write speed on the card of 2400MB/s but it does not come close to its rating. In fact my Lexar V2 card is a slight bit faster in my camera and way faster with PC benchmark tests. Download CrystalDiskMark or ACCO disk benchmark tester and see what yours does on write. Also they have changed the official sustained write rating on those cards to 850MB/s. Not sure yet if they changed the physical hardware in the card or if they simply were false advertising the speed before. I have a case open with them to see what was going on but still no real answers yet. Will post my results here when I know more.
John Navitsky
Well-known member
yes, i think i. general we can expect about half the v4 speed in a v2 system like the z9.
speeds in card readers is a big can of worms because there are a lot of things that can influence speed
Big Al
New member
Thanks for the advice, Ken.
If you use a card reader try using a cable. I have a Lexar card that would not read in the reader. Retrieved the files using the USB cable supplied with my Z9.
JerryF
Member
Well yes the as designed interface V2 max speed is 2000MB/s where the V4 speed is 4000MB/s. The Z8/9 are V2 devices and can write at around a maximum speed of 1200MB/s based on my testing. But since the card reader can support the full speed of either you would think on a PC you could get close to the sustained write speed. My read speeds in the PC are very close to the stated 3400MB/s. But the write speed is 820MB/s using Windows file transfers which now is very close to matching what Prograde now advertises. But my Lexar V2 card is still faster than the Prograde V4 card at 907MB/s. Anyway that's where I am at so far.
I bought 4 of these cards immediately after they were available.
This is what I read in progrades launch information and on their web page they said as I did that no current camera can use the full capability of the card at this time. "NOTE: Current CFexpress cameras will not be able to take advantage of the maximum speed of this card. Until CFexpress 4.0 cameras are introduced, the benefit of this card is tripling the speed of your workflow when downloading content with the ProGrade Digital PG05.6 USB 4.0 Reader."
They also said had to use the USB 4.0 with a compatible Thunderbolt/USB 4.0 ports for full speed with the reader.
I just went to their web page and see they have changed the sustained write speed to 850 mbs on front of the 512 GB card and not on the 1 TB and 2 TB which were not available yet when I got mine which does say 2,400 mbs. That is puzzling that they would change one and not the other two to reflect the fact that as noted current cameras can not take advantage of the higher speeds. I will have to contact them monday.
I do not download testers etc.. I only care about how they perform in the field and when downloading to my Mac Studio M1 Max drag and drop from my reader to my desk top. So far performance in the Z9 for my cards in the field is as I noted comparable to my more expensive Delkin Blacks every shooting situation can be a bit different but I can tell no real practical difference. Drag and drop speed from the card to the reader is about twice as fast as the Delkin Black were.
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Woody Meristem
Well-known member
On occasion I've been able to recover images from a card I'd formatted using the free program Recuva. It doesn't always work, but it's well worth a try, nothing ventured nothing gained. I put the card in a card reader and tell Recuva to do a deep scan which takes a few minutes. If the images have been overwritten they can't be recovered, but if you try before an abundance of new photos are taken they may still be recoverable.
I have had the good success using SanDisk's recovery software — Rescue Pro.
If you experience this type of failure, it is best not to reformat the card. If you have, you can still recover files, except for those that reside in the damaged area. It is also good practice to low-level reformat. This will find any damaged sectors and map those as no longer unavailable. Depending on the age vs the cost to replace, I usually repurpose the SD. I have 4 xCFexpress, all of which have preformed perfectly to date.
1 x Prograde 128GB 1700/MBs,
1 x Indmen 128GB 1700/MB/s
1 x Sabrent 512GB 1700MB/s
1x Roll-your-own 1TB 4800/MBs (using 1 x Zitay CF enclosure, and MP600 Mini PCIe Gen4x4 NVMe M.2 2230 SSD costing $160.00cnd/+-125.00usd)
I assembled the Roll-your-own above. All sourced from Amazon. I have been testing in my Z8, and on my computers. Fits perfectly into, and out of, my Z8. I have had no heat nor communication issues. I am not a videographer, I would not expect heat will an issue even for long high-resolution sessions. I did apply a quality heat dissipation compound, which does not come with the enclosure. Heads up — a very thin application layer is all that is needed, too much, and you risk expanding the enclosure causing inserting and extracting issues.
It takes less than 5 minutes to assemble. Aside from an inexpensive very fast 1TB CF card, you will need a computer with USB-C 3.2 or 4 or Thunderbolt port to get the speed advantages. Furthermore, a CFexpress reader capable of reading and writing at these speeds, of 1700 ~ 4800MB/s. The Z8 read/write speed is irrelevant, as the Z8 will handshake to the speed of the CFexpress cards wants.
If you have any question, feel free to ask. Cheers.
If you experience this type of failure, it is best not to reformat the card. If you have, you can still recover files, except for those that reside in the damaged area. It is also good practice to low-level reformat. This will find any damaged sectors and map those as no longer unavailable. Depending on the age vs the cost to replace, I usually repurpose the SD. I have 4 xCFexpress, all of which have preformed perfectly to date.
1 x Prograde 128GB 1700/MBs,
1 x Indmen 128GB 1700/MB/s
1 x Sabrent 512GB 1700MB/s
1x Roll-your-own 1TB 4800/MBs (using 1 x Zitay CF enclosure, and MP600 Mini PCIe Gen4x4 NVMe M.2 2230 SSD costing $160.00cnd/+-125.00usd)
I assembled the Roll-your-own above. All sourced from Amazon. I have been testing in my Z8, and on my computers. Fits perfectly into, and out of, my Z8. I have had no heat nor communication issues. I am not a videographer, I would not expect heat will an issue even for long high-resolution sessions. I did apply a quality heat dissipation compound, which does not come with the enclosure. Heads up — a very thin application layer is all that is needed, too much, and you risk expanding the enclosure causing inserting and extracting issues.
It takes less than 5 minutes to assemble. Aside from an inexpensive very fast 1TB CF card, you will need a computer with USB-C 3.2 or 4 or Thunderbolt port to get the speed advantages. Furthermore, a CFexpress reader capable of reading and writing at these speeds, of 1700 ~ 4800MB/s. The Z8 read/write speed is irrelevant, as the Z8 will handshake to the speed of the CFexpress cards wants.
If you have any question, feel free to ask. Cheers.
uday592
Active member
I have a card failure experience with Delkin Devices Black 150 GB CF express type B card. I was on a bird watching tour and the suddenly got the message on the camera that the card is not readable and insert another card. Never had this problem before.
Prograde has told us we need to read/down load these new ProGrade CFexpress™ Type B 4.0 Memory Card (Gold) 512GB using a Thunderbolt USB 4.0 compatible Prograde CF Express type B single slot reader conntected to compatible Thunderbolt/USB 4.0 ports for full speed down load with the reader.
I did some experiments with my last card download to my Mac Studio M1 Max. I downloaded the same card 3 different ways with very big speed differences. I deleted the folder from the computer after each of the first two downloads and emptied the trash.
First connected with prograde cable that came with the reader to a OWC 5 port Thunderbolt USB 4 hub connected via the supplied cable to a Thunderbolt USB4 port on the back of the Mac Studio. Second used the same cable connected to the USB C non thunderbolt port on the font of the Mac Studio and both methods took about 3 times as long as it did connecting the reader via the same cable directly to the thunderbolt USB4 port on the back of the Mac Studio where the OWC hub had been connected. So if I am in a hurry direct connect to the thunderbolt usb4 port is the only way to go and gives the download speeds I would expect.