I tried to render an MPEG2 file into WMV. It ran out of disk space, but instead of terminating the process with an error message, it continued as though it was saving, until completion, when it reported success. But the result was a 1-hour clip that had been truncated to only 7 minutes, with no indication that it was not full-length (other than the file size, which should have aroused suspicion).
This would seem to be a bug in VP8.
This would seem to be a bug in VP8.