Videos fail with unknown error (index -3)

I'm receiving the same error with a video I've encoded (details shown below). I have noticed that if I limit the encoder to only encode the first 20 (or so) frames, the video plays with no error. Additionally, if I reference the URL from within my browser, QuickTime can play the video flawlessly. I initially tried using the settings as outlined in the Roku Streaming Player Encoding Guide, but those settings result in the same behavior. Is there something I'm overlooking?

Error Code

request failed - error: -3 - An unexpected problem (but not server timeout or HTTP error) has been detected.

Video Properties (from ffmpeg -i)

ffmpeg -i 20080703184721.m2ts.mp4 
FFmpeg version git-N-28891-gda53f05, Copyright (c) 2000-2011 the FFmpeg developers
  built on Apr  5 2011 16:43:42 with gcc 4.4.3
  configuration: --enable-gpl --enable-version3 --enable-nonfree --enable-postproc --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxvid --enable-x11grab
  libavutil    50. 40. 1 / 50. 40. 1
  libavcodec   52.117. 0 / 52.117. 0
  libavformat  52.105. 0 / 52.105. 0
  libavdevice  52.  4. 0 / 52.  4. 0
  libavfilter   1. 77. 1 /  1. 77. 1
  libswscale    0. 13. 0 /  0. 13. 0
  libpostproc  51.  2. 0 / 51.  2. 0

Seems stream 0 codec frame rate differs from container frame rate: 59.94 (2997/50) -> 29.97 (2997/100)
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '20080703184721.m2ts.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 1970-01-01 00:00:00
    encoder         : Lavf52.105.0
  Duration: 00:00:17.57, start: 0.000000, bitrate: 2175 kb/s
    Stream #0.0(und): Video: h264 (High), yuv420p, 720x480 [PAR 32:27 DAR 16:9], 2048 kb/s, 29.97 fps, 29.97 tbr, 2997 tbn, 59.94 tbc
    Metadata:
      creation_time   : 1970-01-01 00:00:00
    Stream #0.1(und): Audio: aac, 44100 Hz, stereo, s16, 128 kb/s
    Metadata:
      creation_time   : 1970-01-01 00:00:00
At least one output file must be specified