saving frames out of a running video in a particular folder

Hi all I am running a video and taking frames out of it.. my problems are as follows:

1. how to change the rate of number of frames per second(i am using mmreader() function and using get() function i am taking out number of frames)..

2. also i want to save all these frames in a particular folder.

please let me solutions for these if anyone knows how to do these tasks...

[Jorge Lopez]

hi men, try testing the following

2.

for img = 1:QuantityFramesofVideo;

filename=strcat('frame',num2str(img),'.bmp');

Frame = read(Video, img);

SaveDirectory=('Directory');

filename=fullfile(SaveDirectory,filename);

imwrite(Frame,filename);

end

you could explain better if you speak Spanish.