[Histonet] Need help from Imaging Experts

[Bledsoe, Sharon B]

Here is my problem:  I can only use Mac iMovie to edit my digital 
video.  I can not do this on a PC. ONLY iMovie.  To save a single frame 
from the video, my choices are either PICT or JPEG format.

My Question is: To save an origianl image, which is the best format, 
PICT or JPEG?

I'm not interested in hearing about Tiffs, BMPs or any other format as 
that is not one of my choices.