I wanted to share my own experience and discovery here.
I have 2 lexar 256gb3600x and had no issue until… I let the um46 fill one card and automatically switch using the other. Then 1 of the card were unreadable in mac. I dont remember witch one, if it were the card in the slot 1 or slot 2.
My card are always in HFS+ and using Lexar CR1 reader
1 time the card were unreadable on mac but were readable in camera.
The corruption file happened with different codec format. The cards were formatted in camera and sometimes in mac OS X.
I am using SoftRaid lite since a while to manage my raid and recently I discovered I can certify a disk. Here the info from the software:
«Can I certify the CF and HDSC cards for my camera?
You can also use SoftRAID Lite's Certify Disk function with all your digital camera media such as CF and HDSC cards. If you certify a card before you use it in a camera, you will be assured that all of the space on the card can read and write reliably and are less likely to lose pictures due to a defective card. In professional photography environments, we recommend certifying cards every 30 - 60 days.
….
Why does the last pass of a disk certify write only zeros?
If you ever have to recover a file that you have accidentally erased or send your disk to a data recovery service after it has failed, it is much easier to locate the files you need if all the unused space on the disk is filled with zeros. SoftRAID helps makes it easier to recover files by filling disks with zeros during the last pass of certifying a disk. »
after successfully certified the cards; I have tested 4 full ingest in slot 1 with both cards. There were no cards in slot 2.
I also retested full 4 ingest with 2 cards letting automatically fill one and ingest on the other.
result show no corrupt file.
I can not be sure the issue came from formatting the card in camera. But for the moment I think I will avoid formatting the card in camera. Certifying the card thought convince me that the card, the cr1 and cable were fine.
Regards,