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.
Follow this article, you will get the best way for playing/watch Blu-ray discs or Blu-ray ISO Files on HP laptop. In order to watch Blu-ray discs or BD ISO on HP laptop, you must have three things: 1) a Blu-ray disc drive, 2) a Blu-ray movie, and 3) Blu-ray Player Software(Need decrypting Blu-ray function).