I consider USB drives to be a commodity, but these drives have proven to make a difference in quality. Out of the 10 packs, I couldn't find a single disc that wouldn't spoil the video files copied onto it. I noticed artifacts in video and audio in different parts of the 4.2GB video file. I checked the source file, there were no artifacts. Copied the same file to a Sandisk USB drive and had no problems. It is clear that the problem is precisely with these disks, and not with one disk, but with all 10. I have not seen anything like this with USB drives. Due to the 4GB limit of FAT32 (the default format) I reformatted it to NTFS. I'm not sure if people see a problem using FAT32, but there are certainly problems with NTFS. I've spent quite a bit of time on this and am already past my due date to return to Amazon. I would recommend avoiding this brand.
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