I have a 120 gig hd with 110 gig of avi files that are the basis of a 1.5 hour film. All are DV. The book says the project trimmer will create copies of the files it trims and then I can delete the original files, but there is no room to create copies of anything unless the trimmings are deleted as you go along. Is there a way to trim avi files to the batch list? Does premiere have another way to trim the source files to the lengths used?