I made a test video on my TESCO trail/deer camera on a PNY SD card. I have a PNY SD card and a PNY Multi-Slot USB amp; Flash Card Reader all together now (the card is in the reader). When I plug it into my Windows XP PC the PC recognises and installs the device but opens empty folders. Am I doing something wrong or is the card reader faulty? PNY support is a joke.
Two computers I have have card readers built in and they both work with all the cards I have purchased both for cameras and for audio recording. I can transfer data from both of these devices either through USB or removing the memory card and putting them in the built in readers and they are seen as another drive on either computer. Not all cards are compatible with all devices so you might have a compatibility problem.