No Complete Data

i downloaded a file that said it was over 700mb, took 2 days to complete, when i clicked the downloaded folder it also said over 700mb, when i opened it, it only gave me a sample of the video, i opened it in mpeg encoder and it only showed about a minute of information on it, this is the second time this has happened to me, but i have had no problem with other files with the same size mb, can anybody shed some light on this for me,

this is the file http://62.212.84.226/search/details.php?fileid=57833

thank you