Sometimes that happens because the video format is not compatible with the PS3 so I say try to get a video converter, the best one I say is Xilisoft Video Converter Ultimate. The PS3 mainly can play mp4's so try to get videos that are in that format to work and just put it in the SD card.
i had the same problem, both with my playstation and my computer, most likely the problem is that the format is incompatible with anything but the camera. as far as i know there is no way to fix it.
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Sometimes that happens because the video format is not compatible with the PS3 so I say try to get a video converter, the best one I say is Xilisoft Video Converter Ultimate. The PS3 mainly can play mp4's so try to get videos that are in that format to work and just put it in the SD card.
i had the same problem, both with my playstation and my computer, most likely the problem is that the format is incompatible with anything but the camera. as far as i know there is no way to fix it.