Exporting Save Mov..

i get the usualu save move not enough space error msg but i have looked at my task manageer and the charge peak is no where near my limit... what other things can i do to try and fix this prob, thx for your time. its appreciated

oh yeh and i do have JPEGs in it (i will change them to bitmap just in case) but it was exporting fine be4 and i had jpegs in it... as far as i know all other files and what mm likes