rootbear you attached the exact same file, MD5 is the same. You seem to be on a noob streak at the moment, no offence. The problem is it's not in PCM format. As Samapico pointed out one quick way to check this is right click on the file, select Record and if there's no green and black waveform it won't work in cont. To fix it, while still in Sound Recorder click File, Save As, optionally click Change to select a quality level (make sure format says "PCM"), then click Save. If anyone is curious the codec ID is -2, which is "extensible wave" (it should be 1 for PCM). Coincidentally you can check this with a tool I recently released on Server Help forums.