How to Compress 50GB Blu-ray to 25GB?

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When taking about backing up Blu-ray disc, there is one important question which can’t be ignored. That’s how to compress a Blu-ray disc. The main reason is that Blu-ray disc is usually very large in file size, a single layer Blu-ray disc comes with the storage capacities of 25GB, while a dual-layer Blu-ray disc comes with the storage capacities of 50GB. For those people don’t have enough storage space on your hard drive to store the ripped Blu-ray movies, it is essential for you to compress Blu-ray into smaller file size during the Blu-ray digitizing process. There are many different options to compress Blu-ray movies, in this article, we will focus on the solution about how to compress 50GB Blu-ray to 25GB with perfect picture quality and sound effect.

Since currently there is no software on the market that can fulfill backing up Blu-ray and burning video to blank DVD disc at the same time. So to compress a BD 50 to BD 25, you will need to go through the following 2 parts:
Part 1: Backup 50 GB Blu-ray to 25GB video without quality loss
Part 2: Burn copied Blu-ray into 25 GB blank Blu-ray disc

Part 1: Backup 50 GB Blu-ray to 25GB

Although there are many Blu-ray Ripper application can assist you to complete the job, however, if you are looking an application that can powerfully decrypt all Blu-ray encryption and also compress 50gb commercial Blu-ray disc into 25GB with almost no quality loss. Pavtube ByteCopy can be your unique choice.

The program features a powerful built-in disc decrypter to assist you to automatically bypass all Blu-ray copy protection and region code in the background with no additional software. In addition, it also keeps constant update with perfect support for the new Blu-ray encryption such as MKB61 and MKB62 used on many recently released Blu-ray disc.

As for the core compression function, you can use this program to efficiently compress 50GB Blu-ray disc to a video under 25GB such as the highly compressed H.264 format which is smaller in file size but preserve high quality. Besides H.264, you can also choose to shrink 50GB Blu-ray disc to H.265, a new standard that offers roughly double the compression ratio for the same quality. This means that a video file encoded with H.265 can occupy half the space of its H.264 equivalent with no noticeable change in quality, or the same amount of space with improved quality.

Related article: Compress DVD on Mac | Compress 3D BD50 to BD25 | Best Video Compression Software

Pavtube ByteCopy is available on Windows 10/8.1/8/7, it is also accompanied by an up-to-date Mac version – Pavtube ByteCopy for Mac for you to perform the compressing process on macOS High Sierra, macOS Sierra, Mac OS X El Capitan, Mac OS X Yosemite, Mac OS X Mavericks, etc.

Step by Step to Compress/Shrink 50G Blu-ray to 25GB

Step 1: Load Blu-ray disc

Run the best Blu-ray Ripper program on your computer, click this “Load Disc” icon to load your Blu-ray disc into the program.

Load Blu-ray disc

Step 2: Define output format and output folder.

Click the drop-down list of “Format” to specify an output format according to your end use of the output files. Meanwhile, you are able to click the folder icon at the end of “Output” to browse and set a save path to store the ripped Blu-ray files.

Output Blu-ray to digital file format

Step 3: Compress 50GB Blu-ray to 25GB.

Click “Settings” button, and in the opening interface, you are able to adjust bit rate, frame rate, sample rate, aspect ratio, etc. to make control of the output file size and quality.

To compress the file size into video under 25GB, what you should do is changing the figures of these options to be smaller only. Look at the target file size, keep it under 25GB. One more thing you must be sure that there will be some quality loss if you compress them to be a much smaller size, which means you’d better make a balance between the size and image quality. At least the output video quality should be acceptable by yourselves.

Adjust output file size to be under 25GB

Step 4: Start compression and conversion

As long as the former three steps are set well, then you can click “Convert” button to start Blu-ray ripping, at the same time, the compression task of Blu-ray file size is underway as well. Once finished, you can find out the output files via clicking “Open” button. After that you can do whatever you like with the compressed Blu-ray files.

Part 2: Burn converted H.265 movie to Blu-ray using Roxio Toast

Launch Toast 11 and drag the converted mp4 file into this window, or select it from your file browser using the Select button. Choose BD-R from the Space Remaining bar graph at the bottom of the screen, and choose your BluRay burner from the Destination menu. Choose the number of copies you want to burn – each time a disc is complete; you will be prompted by Toast to insert another disc. Hit the big red Copy button, and the disc burning will begin!

About the Author: John Salley

Travel, photography, movies, music, production is my hobby. I will share everything useful articles I think.

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