How to Compress a Blu-ray Movie

Written by joel douglas
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How to Compress a Blu-ray Movie
Compress Blu-ray movies to create a digital archive of your film collection. (a dvd-r disc image by wayne ruston from

Blu-ray discs (BD) store up to 50 gigabytes of high-definition video and audio for playback on compatible players and computers. The format supports a maximum video resolution of 1080p, considerably higher than the 420 lines of resolution offered by DVDs. You can archive a BD on your computer efficiently by extracting the movie and then compressing it to a smaller file. Use software capable of ripping and compressing Blu-ray movies to digitally archive your film collection.

Skill level:


  1. 1

    Use AnyDVD HD and the freeware tool RipBot264 to extract and compress Blu-ray movies (see Resources.) AnyDVD is the only program on the market that can decrypt all Blu-ray discs. Insert the Blu-ray disc and run the included AnyDVD Ripper to copy the contents to your hard drive. Once you have extracted the movie, use RipBot264 to compress it to an MKV file. Set the output resolution to either 720p or 1080p, depending on the display you intend to watch it on. Then configure the output file size. RipBot264 can compress a Blu-ray movie to less than 4 gigabytes. SlySoft offers a 21-day free trial of AnyDVD HD.

  2. 2

    Download AnyDVD HD and the freeware program BD Rebuilder (see Resources.) Copy the movie to your computer using AnyDVD Ripper, and then use BD Rebuilder to compress the video to an MKV file. Use the included x264 encoder to remove unwanted audio tracks, menus and special features from the disc. Configure the output resolution by choosing either 720p or 1080p and set the desired file size for the MKV file. BD Rebuilder can compress Blu-ray movies to fit on a standard DVD5 or DVD9 disc, which you can play on a computer or a compatible playback device such as a PlayStation 3.

  3. 3

    Install AnyDVD HD and Nero Recode (see Resources.) Insert the Blu-ray movie and copy it to your hard drive with AnyDVD HD. Compress the movie to an MKV file with Nero Recode, which Nero bundles with the disc-burning package Nero Multimedia Suite. Configure the desired output resolution for the video, choosing between 720p and 1080p, and then set the file size for the MKV file. Nero Recode will reduce a 50-gigaybyte Blu-ray movie to four gigabytes or less. Nero offers a free 15-day free trial of Nero Multimedia Suite.

Tips and warnings

  • Do not decrypt and compress Blu-ray movies you do not own.

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