The 120s is a lot better from 106s.
It can read every dvd format (except dvd-ram) and can rip a movie from aprox. 5x up to 12x
DVD+/-RW read speed is 4x to 10x !!
You can use it to copy onthefly your dvd-r's in 4x
In addition it can make high speed DAE up to 40x and can handle very well scratched audio cd's with EAC.
Also it doesn't make much noise.
In overall it's a very good drive