THP movie data can store a data table indicating the start of each frame. When using the THPConv tool with the -o option, THPFrameOffsetData is created in the THP movie data. If the -o option is not specified, THPFrameOffsetData is not created. Use this for special playback options, such as starting playback from a specific frame.
THPConv.exe,
THP Movie File Format
03/01/2006 Initial version.