Hi all, 

After performing various additional tests I can confirm, that CloneDVD 2.4.2.7 has a severe problem. In other words: We screwed it. 
I believe, that we have found the cause for the problems, and we will release an update which should fix the "skipping and stuttering" you have seen very soon. 

We apologise for all the trouble...  
and wish to express our thanks to all those great people here, who helped to find and fix this error so fast.  

This incident should teach Elaborate Bytes AG the lesson, to release public beta tests before major upgrades in the future.  

Thanks again and all the best 

Olli