One of the features that I most enjoyed in Proshow Producer was the ability to quickly sync up audio and video. I could easily add or delete slides knowing that any timing adjustments would be maintained on a re-sync. When looking for a new program to replace Producer it was important for me to have a similar feature. However, I find that the sync feature in AV studio comes up short compared to Producer. After spending much time fine-tuning timings in AV studio particularly for those slides with multiple images and complicated arrangements, it’s disheartening to know that were I to sync the audio and the video, all slide timings would get the same duration. Adding or deleting even one or two slides would require more manual effort. So I just avoid that option and consequently spend more time than I want manually syncing. I was just looking at my implementation of Producer and the function that AV studio is missing is the ability to “keep the proportions the same as existing times” which is an option available on Producer's “Synchronize show to soundtrack menu.” I would hope this feature would be available in a future release, or maybe someone knows of a work around.