The sandisk pen drives above 16gb of memory ie. 16gb, 32gb, 64gb usually gets easily corrupted and buggy. And this issue have become a major reason for the fall of sales of the flash drives these days. Since the flash drive supports a lot of memory to save the user data, when it becomes buggy, the user need to format the drive for the safety of the laptop or any such connecting device. Due o this fault in sandisk drives I don’t recommend for its use to anyone. But the sandisk pen drives upto 8 GB are safe and they don’t get buggy as easily as it’s successors. Wisely using the flash drive can make its life worth the dime spend on them.