Canon has warned that when some SanDisk cards are connected to its EOS R5 Mark II cameras, the images on those drives may be damaged or completely unreadable. At the moment there is no solution to this problem – just use other cards.
Image source: sandisk.com
«Photos taken with the Canon EOS R5 Mk II may be reported as damaged/unusable due to incompatibility with certain SanDisk Extreme PRO SDXC UHS-II V60 64GB, 128GB and 256GB cards,” reads a post on Canon’s website. This is one of the most common series of memory cards of this brand. The camera manufacturer’s website also provides a link to the SanDisk page, which lists all compatible memory cards, including all models in the V90 Extreme PRO series, as well as the highest-capacity 512 GB and 1 TB options in the V60 line. The “problem solution” section on this page is empty. Neither Canon nor SanDisk specified how the incompatibility issue with standard SD cards could have arisen.
SanDisk and its parent company Western Digital have had several scandals with the reliability of their products in recent years. The first consumer network storage system had several zero-day vulnerabilities that the company was unable to completely eliminate. And in 2023, it was discovered that portable SSDs from SanDisk were so poorly built that they were suddenly failing en masse. The manufacturer did not acknowledge the problem, did not solve it, did not recall the product, but began selling obviously unreliable drives at a discount.