**[Cesar Delgado]** *"it doesnt make sense to me that if I'm lowering the bitrate and resolution and quality, I end up with a file size even huge than the original one."*

The only thing that matters is the bit rate. It doesn't matter what the resolution is. The bit rate determines the file size because it controls how many bits per second will be used to represent the video regardless of resolution.

The original file size doesn't make sense to me. You said it was encoded at 16Mbps for 35 minutes. If you do the math, 16,000,000 bits divided by 8 bits in a byte gives you 2,000,000 bytes (2MB) per second. There are 2,100 second in 35 minutes so 2,100 x 2,000,000 yields 4,200,000,000 bytes or 4.2GB and that's for the video without any audio. So I don't see how your original file is only 3.7GB. I'm guessing that the average bit rate was lower than 16Mbps.

~jr

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