dvd iso copy lossless quality - no streaming

[quicksand]

Hi, sorry for my english;google translate!!
I would like to see my dvd iso copying them from imac to ps3 without loss of quality then lossless. I do not want to stream, what are the correct settings to avoid losing quality when copying?
with the default settings file shrinks and loses quality.
I hope to have been clear in explaining what I want to do
thanks