Real Newbie Video Question

AndyRick wrote on 11/4/2011, 4:45 AM

I have a YouTube downloaded mp4 (360p) movie which I want to simply trim and save as an mp4. The size of the movie is 400MB. Reason for question: I had a short 4 minute HD mp4 of about 4 minutes and a size of 70MB. When I rendered it out as an avi file, the size was 26GB!!!!!!!! Is there a trick to put an mp4 in and get an mp4 out of about the same size and quality?

Comments

Chienworks wrote on 11/4/2011, 6:53 AM

The size is all dependent on the bitrate. Higher bitrates result in bigger files with better quality while lower bitrates result in smaller files with lower quality. You didn't specify what bitrate you used when rendering.

70MB for 4 minutes is probably about 2.1Mbps for the video. If this quality is acceptable to you then you should use a similar bitrate when rendering. Note however that rendering MP4 to MP4 (or to any compressed format) is going to result in a quality loss no matter what bitrates are involved.

26GB for 4 minutes sounds like you used uncompressed AVI instead of mp4.

AndyRick wrote on 11/7/2011, 8:16 PM

Thanks for responding......I'm not really sure what I did and not too file savvy so let's start from scratch. Suppose I download this file " which is 398MB and simply want to trim 2 seconds from the beginning and 2 seconds from the end. What would I do in Sony Vegas to render the same quality and size of the original file?

laz wrote on 11/8/2011, 9:41 AM

I think this might be what you want:

go to make movie and select advanced render, then select custom;
choose best (good is default) and choose Main Concept AVC/AAC (mp4).

AndyRick wrote on 11/11/2011, 3:24 AM

Nothing seems to be working. The funny thing is that I was using Mpeg Streamclip and it was working perfectly for simple edits. I thought I'd buy "Sony Vegas Movie Studio HD Platinum 11.0 Suite" and do a little more like maybe exchange the audio of movie files, do simple fadeouts....etc.........Boy was I wrong.