Converting has not been the problem.
It was/is more the case of several combinations.
Mainly in all my other stuff.
Going from one layer to the other with different Codecs
produces freezes, stutters, layers out of sync.

ie: looks shitty!!

Selection of some media crashes catalyst altogether.

I used compressor as I am used to it.

What did you convert them to??

Yes I have been using them on Idol.