The Premiere Elements will let you import a max of about 23 to 25 hours of footage. But, you need to have adequate computer resources to deal with that or any lesser duration.
Please describe your computer resources as well as the properties of the images/videos that appear to be associated with your Premiere Elements crashes.
Also, when you are considering taking your Timeline content to burn to disc, then disc capacity needs to factored into the success or failure of a project.
Please give specifics.