Hi everybody,
it is actually not necessary to convert QT .mov files for playback in Sonar 64 on Windows 64.
I tried this when I upgraded my DAW to Win7 64bit and it works great!
All you need is the right codec for this job and there are many free codec packages available.
I use the "K-Lite Codec Pack x64" but I'm sure, others will work, too.
It's recommended by the install notes to install also the 32bit Codec Pack under a 64bit OS, so I did this, too.
Just install the codecs and you can import .mov files in Sonar.
If Sonar doesn't let you pick up .mov files in the import dialogue for the first time, choose "All Files" and then open your .mov file.
Best,
Klaus