www.makemkv.com

I bought an Asus USB-powered BD Drive about a month ago and it's been great so far... just plugged it in and osx recognized it right away... it's fast and quite (for an external drive), and the best part is that it uses the same type of usb cable as my portable drive... it looks and works perfectly,...

What settings are you using and do you have large file size checked in the gui... if your final movie product is larger than 4gb and you didnt enable the large file option... then they wont play in either itunes or quicktime... i came across this problem with the first blu-ray i ever encoded...