Raspberry Pi based Extreme XBMC Media Center allows you to manage your media library and play any of your unencrypted digital movies by attaching a USB drive. This unit itself is small enough to sit hidden out of the way and runs silently. You wouldn’t even know it was there. It would be a great idea to backup your amount of Blu-ray/DVD disc movies to USB drive and then watch them via Raspberry Pi 2 Based Media Center. When you do this, you don’t need to insert or eject your physical discs again and you can lay your heavy Blu-ray/DVD drive aside.
Raspberry Pi based Extreme XBMC Media Center is full compatible with iOS and Android. So when you are backing up Blu-ray/DVD collection to Raspberry Pi based Media Center, you can consider MP4 format which can be supported by nearly all iOS and Android deices. Here, I suggest Pavtube BDMagic to help you achieve this goal.
This software can deal with any DVD/Blu-ray disc, no matter encrypted by AACS, BD+ or Disney, region codes, etc and output perfectly MP4 video with original video quality. For attaching more Blu-ray/DVD to USB drive for Raspberry Pi 2 Based Media Center, this app enables you to compress the video size by adjusting video size and bitrate. (review)
For Mac users, please turn to Mac version which can make you rip Blu-ray/DVD to USB drive on Mac OS X El Capitan.
Free download and install: 
Other Download:
– Pavtube old official address: http://www.pavtube.cn/blu-ray-ripper/
– Cnet Download: http://download.cnet.com/Pavtube-BDMagic/3000-7970_4-75922877.html
How to Backup Blu-ray/DVD to USB Drive for Raspberry Pi 2 Based Media Center?
Step 1. Load Blu-ray/DVD movie
Click “File” to follow “Load from disc” to load your Blu-ray/DVD to the app. This program will automatically choose the main title to convert and it supports batch conversion so that you can load more than one movies at a time. 
Step 2: Set output format
Clicking the Format bar, choose normal iOS and Android devices playable format “H.264 HD Video(*.mp4)” under “HD Video” main category.
Tip: If you need to compress video size, you can click “Settings” to reduce the bitrate and size to get smaller size. You can preview the output video size at the below chart.
Step 3: Start Blu-ray/DVD to MP4 conversion.
Hit the big “Convert”button in right-bottom to convert Blu-ray/DVD to USB drive.
Transfer the ripped Blu-ray/DVD to USB drive and plug this thumb drive to the USB port on Raspberry Pi 2 Based Media Center. Now, it can view your Blu-ray/DVD movies on Raspberry Pi 2 Based Media Center.
Note: This Blu-ray/DVD Ripper is also able to output other popular video format like H.265, M3U8, MOV, MKV, AVI, FLV, etc for your other media players and devices.
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