Friday, September 23, 2011

Will changing a blu ray video's format change the quality?

I downloaded this blu ray video and I wanted to see if it played on my ps3. The format was .mkv so it wouldn't play so I changed to format to MPEG-4 format. I used this converter and it gave options about the quality. I chose all the best quality and i'm just wondering if changing the format means the quality is less.Will changing a blu ray video's format change the quality?Modifying from one %26quot;lossy%26quot; format to another always affects quality. However, it all depends on what you can live with.



For instance, CD is perfect quality but MP3 is a compressed version of the same music (with some parts thrown away - hence it's %26quot;lossy%26quot;). But for most of us MP3 is more than good enough as an equivalent.



So long as the resolution and framerate stays the same then it's unlikely to be too much loss, however the truth is in your own eyes (and ears). If it has changed the resolution (say from 1080 to 720) then you could see the difference.



However you haven't said what you're playing it back on - if you're watching the video on a HD Ready 720p TV then you wouldn't notice the difference. If you're watching the video on a standard definition TV then it's doubtful you'll notice any difference.



If you really want to see what converting from one lossy format to another causes issues then i'd suggest you try converting a music file from MP3 to another format and back again... then listen to the originals and see what you think.



Hope that helps??Will changing a blu ray video's format change the quality?Anytime you change format it will affect the quality of the video. Blue Ray Disc movies are 1080P format, changing format will degrade the 1080P.