• Compression Techniques

  Drastic Compression

  Posted by Robert Gilbert on January 13, 2025 at 2:08 pm

  Peace to all,

  I need to upload my 2 hr. 4K movie to the U.S. Copyright Office which accepts only files under 500 MB! Could anyone please tell me asap how I could so drastically reduce it, exporting from Premiere (on Mac Mini) and maybe zipping? Naturally the quality will have to take a much secondary place, as long as it doesn’t look like garbage.

  Thanks so much!

  Robert Gilbert replied 1 year, 3 months ago 2 Members · 2 Replies
• 2 Replies

• 

  John Fishback

  January 13, 2025 at 7:47 pm

  I don’t edit with Premiere, but use Adobe Media Encoder. You might be able to do this in Premiere.

  Bit rate and resolution are the parameters that most affect file size. I’d start with a bit rate of 500kbps and lower your resolution to 720P. AME will show you the estimated file size after you enter the parameters.

  H.265 will give you better quality compared to h.264 at the same bit rate. So you can go to a lower bit rate with h.265 and maintain quality, if the copyright office accepts that CODEC.

  Be sure to use 2-pass encoding as that will increase quality compared to 1-pass. Also, use variable bit rate. Hope this helps.
• 

  Robert Gilbert

  January 13, 2025 at 7:52 pm

  Thank you very much, John!

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