HomePavtube ByteCopy for Mac allows you to set output video/audio quality by entire disc and individual Title. When the default formats do not meet your need, you can use custom output option to create a customized format for use.
You may choose to
a. Set output quality for entire disc
b. Set output quality for each Title
c. Create customized output option for use
a. Set output quality for entire disc
To set output file quality for all the Titles in file list, you may select the whole disc (move your cursor to the movie name) and click “Edit Disc” button
, and then choose an output solution from the dropdown list of “Format” box. There are multiple options for exporting Blu-ray and DVD movie in MKV format, i.e., lossless, HD Player, and Custom.
Lossless - Video stream and with selected subtitles and audio tracks are extracted from disc and sealed into MKV container without transcoding, everything is kept the way it was created.
HD Player - Movie clips are converted into H.264/AC-3 encoded MKV streams. Video and audio parameters other than codec and format are the same with original streams.
Custom – When this option is selected, you can create customized file formats with specified video codec, bitrate, frame rate, and audio codec, sampling rate, channels, etc. Find more info in Creating customized output option. 
b. Set output quality for each Title
In file list you can select and set output quality title by title. Select a title and click the “Edit Title” button
to set output video and audio quality. Here you find three tabs, the Video tab, Audio tab and Subtitle tab. To transcode and shrink movie, check “Encode” box of the video stream and set desired codec, bitrate, size and frame rate for exporting movie. To transcode an audio stream, switch to “Audio” tab, select the track by checking corresponding check box. Then check “Encode” box and set audio codec, sample rate, bitrate and channels.
c. Create customized output option.
When the default formats do not meet your need, you may create customized output option for use. Here’re steps to create new output option.
1. Select the whole disc, click “Edit Disc” button to enter “Edit Disc” window.
2. Find the “Format” bar, and select “Custom” from dropdown list of “Format” bar.
3. Click “Settings” button to set and save new output format in “Setting Disc Streams” window. Check the “Encode” box, and set customized video codec, size, bitrate, frame rate, audio codec, sample rate, bitrate, channels and subtitle codec.
4. When everything’s settled down, click “Save” button, give a name to the newly created format, and click “OK”.
5. Click “OK” on “Setting Disc Streams” window and back to “Edit Disc” window. You’ll find that the new format is added to dropdown-list of “Format” bar.
Some helpful tips:
1. By default the video size is “original”. When you make changes to video size, please also check the “Encode” box below “All Subtitle Stream”. When a subtitle looks fine on 1920*1080 video, it might go beyond the screen when the video is resized to 1280*720, so make sure the subtitle is converted as well.
2. Do not set 6 channels for audio when MP3 or MP2 codec is selected. Do not set 1 channel when DTS is set as audio codec.
3. A lossless Blu-ray movie can take up space ranges from 20GB to 50GB. If you want to cut down file size, try setting smaller value in video “Bitrate” instead of using “original”.
18000kpbs- excellent HD video quality
8000kbps- DVD video quality
2000kbps- video for portable media players (e.g. Galaxy Tab, Archos 101)
512kbps- video for regular mobile phones
4. In order to play a video clip properly on your device, make sure the video is encoded with proper codec (ByteCopy offers H.264, Xvid, MPEG-2 only) and packed in proper container format (MKV only for ByteCopy) with proper bitrate, frame rate, resolution, audio channels.
