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F4V/MP4 files recorded locally by FLME 3 are in a format unreadable by Flash Player and many other common MP4 players that support MPEG4 part-10. The files are in a fragmented format spec that many players do not implement and you will need to "flatten" them first before Flash Player, et al, can play them back. The files do not need to be flattened if they are going to be streamed by FMS, only if you attempt to play them via progressive/local or in programs such as QuickTime. The F4V post-processor is available for download here: http://www.adobe.com/go/fms_tools/