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.
Mini USB B Male to USB 2.0 3.5mm Jack Plug Audio Data Cable 50cm 20-inch 5 Pcs. 1  Type: HI - Conduit & Fittings. 2  Model #: a14052800ux0957. 3  Item #: 9SIA27C4955807.  Return Policy: View Return 1  Policy. $15.99 15. 2 99. $10. 3 20 â. Save: 4  36%. Free Shipping.