This article mainly concerns about how to backup and rip your Blu-ray[1] movie: How to Train your Dragon to digital format, like MKV, MP4, AVI, etc. If your feel anxious of physical damage or loss of your Blu-ray disc: How to Train your Dragon[2], then make a digital copy of it is necessary and reasonable. For instance, rip Blu-ray to MKV format is a good choice.
Blu-ray How to Train your Dragon Reviews from IMDB
How to Train Your Dragon is the story of Hiccup, a Viking who feels out of place since he's not a fan of killing the dragons the Viking's world so revolves around in. But, when Hiccup captures the rare Night Fury Dragon and inadvertently injures it, the two become fast friends and attempt to bridge the gap of understanding between the Dragons & the Vikings. It may not sound like much, but things are deeper than they may seem here.

The Tool you need to Rip and Backup Blu-ray How to Train your Dragon
1. WinX Blu-ray Decrypter: remove BD copy protections, and rip Blu-ray video to M2TS file.
2. WinX HD Video Converter Deluxe: convert BDAV M2TS video to popular formats with easy and fast.
How to Make Digital Backup of Blu-ray How to Train Your Dragon?
Firstly you can use WinX Blu-ray Decrypter to remove Blu-ray copy-protections such as The Advanced Access Content System (AACS). And the output will fall in BDAV M2TS file. Since it is not quite friendly to your computer (row source is not playable on majority of common media players), you need to convert M2TS to other video format like MKV.
After that, thanks to WinX HD Video Converter Deluxe fully supports Multi-core CPU (i3, i5, i7), and armed with Hyper Threading Technology, you can converting Blu-ray movie How to Train your Dragon by multi threads at the same time, which speeds up the conversion timely. Free Download to Experience >>
Related Software
WinX HD Video Converter Deluxe : builds 160 video codec and 50 audio codec, a perfect multi-functional combination of not only AVCHD to WMV converter, but also DVD Burner and Website Video Downloader. Without any third-party codec, it can support Multi-track HD video M2TS, MKV, AVCHD and MPEG-TS video movies.
WinX Blu-ray Decrypter: powerful Blu-ray backup tool to decrypt and rip Blu-ray to your hard drive and store as m2ts files. It is capable of removing all the protections, such as encryption AACS, BD+ copy protection of Blu-ray Discs. Allows you to rip Blu-ray movies to hard drive with high video quality and super fast speed.
Related Source
Blu-ray Disc: Blu-ray Disc Reference Page
Convert M2TS to MKV: Convert M2TS to MKV, Compress HD M2TS to MKV - Keep Image Quality
Convert MKV to MP4: Convert MKV to MP4, Play MKV on New iPod touch iOS 4 with MP4 M4V
Convert MKV to iPhone: Convert MKV to iPhone MP4/M4V to play MKV on iPhone 960 x 960 Retina Display
Convert MKV to iPad: Convert MKV to iPad MP4/M4V to play MKV on iPad 1024 x 768 LED Display
Convert/Rip Blu-ray to MKV: Remove all Blu-ray protections and Hold best BD Quality
Rip Blu-ray Toy Story 3: Make Digital backup of Blu-ray Toy Story 3
Rip Blu-ray Iron Man 2: Make Digital backup of Blu-ray Iron Man 2
Rip Blu-ray Inception: Make Digital backup Leonardo DiCaprio's Film Blu-ray Inception
Rip Blu-ray Beauty and the Beast: Make Digital copy of Disney's Classic Movie Beauty and the Beast
Related External Source
[1]: Blu-ray Disc - Blu-ray Disc (aka BD) is an optical disc storage medium like the standard DVD format
[2]: How to Train Your Dragon (film) - Learn more info on Wikipedia.org