hey ns... so every year my mom makes a family ski video of our trips through out the year. and she edits on PC using Corel. and whenever she is in the middle of it the computer and software just bombs and shuts down. my dad is thinking about getting her a mac book pro. We film in only HD. and we hve a Contour HD. my first question is: why is this happening? my second question is: is there anything he should get on the mac book pro to make it perform better when it comes to editting?