The original video files were created and stored in a WD external hard drive using my 2012 iMac OS Mountain Lion. Will appreciate assistance on this...thanks.
MacBook Pro with Retina display, OS X Mavericks (10.9.1)
I don't know specifically the answer for iMovie. But I can tell you in general that as software versions advance, each successive version's data requires more space than the previous version. Generally, more information is kept.
It also depends on the compression format used as well as the file format - are the videos 1080 or 720p full HD or ? Adding anything will increase the file size; I generally shoot in 720 HD and can easily amass 150 GB of temp files while putting together a project, but then I try to process it as losslessly as possible.
Thanks for your quick replies. All the stored videos are events that I haven't yet converted to projects so the files are large. They are compilations of my all my analog tapes since the mid-80"s that I converted to digital using my 2012 iMac desktop. I must have about 2TB on an external hard drive. So will i need another 2TB external hard drive to store the new library that will be created by the iMovie of my 2013 Macbook Pro Retina with OS X Maverikcs?
Will updating projects and events require the same amount of space as the original files in the new library that will be created by iMovie 10.0.2?
