I tried to cut about 25% out of an AVI file and noticed that while the original file was about 1.9GB, the cut file was over 3GB. It's an AVI, and I used the AVI Muxer in output format, and 'copy' for both the audio and video sections. I tried it again without cutting anything and the file was about double in size. Why would it do this- copy means it doesn't re-encode so it should be (roughly) the same right?
EDIT:
Used MediaInfo and found that the larger sized file has a much higher 'overall bitrate'- about 20 Mb/s more. I'm not sure how to tell what coded the original uses or how to make avidemux/virtualdub use the same, is that the issue? Both the original and copied files have a "First video stream" of about 35 Mb/s which is almost exactly the 'overall bitrate' of the copy.
EDIT:
Used MediaInfo and found that the larger sized file has a much higher 'overall bitrate'- about 20 Mb/s more. I'm not sure how to tell what coded the original uses or how to make avidemux/virtualdub use the same, is that the issue? Both the original and copied files have a "First video stream" of about 35 Mb/s which is almost exactly the 'overall bitrate' of the copy.