Bests & Worsts Reviews from Amazon

This "64GB" card ruined a vacation as it only recorded the first 32GB of videos, and then "recorded" another 30Gb of blank/corrupted "files" - never stated an error, but all files show as unopenable - this is the classic sign of a hacked card misrepresenting its size by giving "files" a "size" in the file allocation table, but not really writing a file. The FakeFlashTest utility fails and shows only 32GB of the card as usable, and the FAT32 Format tool (which can format up to 2TB) cannot format the card and says the volume is corrupt. Every other attempt and utility to format the card in ANY capacity in any tool has proven fruitless - Windows format (Fat32, NTFS or exFAT) fails as well. What a HUGE disappointment that will now last a lifetime! This card was sold directly from Amazon (not a 3rd party, and not a fulfillment only), so I assumed it was a legitimate quality card. I should have known when it did NOT come retail packaged, just came in a small ziplock pouch with a label.