In response to a customer complaining about dictation missing when it arrives at the secretary, we found the following:
This can happen when a user removes a portable device when a voice/sound file or video file hasn’t completed transferring. The file header will show that the file is say 10 minutes long, but the user cut off the transfer with 5 minutes to go for example.
The file will still play 8 out of 10 times, this is the strange thing with windows media files, but it will stop after 5 minutes instead of 10. The transcription software will see that the header says 10 minutes, but when it cross checks the actual file length it finds it’s only 5 minutes long so it changes the header to show the correct length. A strange noise is heard during playback, which is simply corrupted header information.
The users must leave the device docked/plugged-in until the file has properly transferred, even when the machine shows it’s finished, it may still have a few seconds to go.