Backing up Blu-ray movies #3

After you have a single m2ts file, the size of 15G is still quite big. If you are happy with this, then take no further action. If not, you can reduce the file to less than 1G, using the Matroska (MKV) file format & with the video quality still high.

First, download & run MeGUI.

1. When first run you should be prompted to update. Select Options -Update and apply all updates.

2. We need to start [Avisynth script]. It is easy to do by selecting the option from the [Tools] menus or pressing CTRL-R.

3. [Select your input file] - the .m2ts file from TSRemux. A preview window will open. This will be at the actual resolution - 1920×1080.

4. On the Options TAB, [Check Crop], select [Autocrop], [Check resize - input the Horizontal resolution of 1280], [check suggest resolution then uncheck] it to have the corrected size.

5. Move on to the [filter] Tab, If you are unsure of the file type you should always select [analyse]. This does take a few minutes to complete but is worth it if unsure. When complete [select the Source Type], i use [progressive]. [Set Resize Filter to Lanczos4] and [enable the noise filter] if required. [Select save and provide a file name].

6. Open the [Bitrate] calculator from the [Tools] menu. Your video file details should already be populated so ensure the relevent codec and container types are selected then select your required file size from the File Size dropdown. Set the codec to x264 and the file format to MKV. Click the config button. Input your own calculated bitrate. Click OK.

7. [Audio] For the input file [select your video file again], [give an output name] ensuring it is different from the video output name, [choose your audio profile] - NDAAC-LC-Multichannel-HQ-256kbps or one suitable for your requirements, set the codec to ND AAC - the Nero codec should have been installed when MeGUI was updated. If not down load it from http://www.nero.com/eng/nero-aac-codec.html. Place it in Megui\tools\NeroAACenc. Click [enqueue] in both Audio and Video sections the move to the [queue] tab.

8. You can see the [two video passes and the audio jobs] in the queue. When it is used for the first time you will need to [create a Worker]. You can now start the encoding process by clicking [start]. This will take several hours to complete.

9. When completed, you will have a seperate audio and video stream [ie. 2 files].

10. Run MKVMerge to mux these 2 files together into a single MKV file. [Select your two input files, give an output file and select Start Muxing].