Various causes: There are very many causes, from congestive heart failure, to lymphedema, to venous insufficiency, blood clots, pregnancy, a various other causes, including serious and not-so-serious causes.
I have a Sony DVP ns55p blu-ray player with a usb port in the front. The player requires that the usb flash device (thumb drive) be formatted in FAT32in order to recognize it.
Pricing and Availability. The 128GB SanDisk Ultra Fit USB 3.0 Flash Drive is priced at an MSRP of $119.99, and the 256GB SanDisk Ultra USB 3.0 is priced at an MSRP of $199.99. The new drives are available online and at retailers worldwide. For a list of online availability, visit www.sandisk.com.