Here's what. I import a video into Sonar, then bring in some audio, process it and all that.
 
 
I then realize I may need to shift the video on the timeline a little bit, say a measure or two in order for some leading audio to start before the video starts. Now I can't figure out how to do that. There is no way to grab the header of the video track to move it. It just doesn't work. Okay then. I "Select All", and apply "Process ---> Slide" to two measures. The audio track slides 2 measures but the video track refuses to budge, which results in the video starting at the beginning and the audio starting 2 measures late which is simply the opposite of what I want to achieve.
 
Any ideas ?
 

You Cant.

From the manual:
Note: Adjusting a video clip’s start time is currently only supported when using the DirectShow video engine,
not when using the Media Foundation video engine.
 
But Media Foundation is the default, and you have to modify Aud.ini to make DirectShow (legacy) the default.
That may limit you when importing video types. But then right click on the video view, pick "properties" and look for the start time field.

Okay, I just tested this...here's the answer.
 
DirectShow (audini video = 0) - you can move native Windows format videos on the timeline, but not MP4.
Media Foundation (audini video = 1) - you can't move either MP4 or a native Windows format on the timeline.
 
In all cases you can move the start point further into the video. So for example, you can have 00:00:00:00 of the audio start a certain amount of time into the video. This means if you have a blank space at the beginning of the video, you can determine where the music starts within that blank space.

This is something I'd definitely like to see in a future update, is an easier way to work with video - not suggesting a full fledged video editor but it would be very handy to be able to trim the head off a video, or easily slide it around the timeline (in any codec).  And I won't even get started with asking for multiple video files per project or HD monitor output lol...

Id save yourself the aggravation and use a video editing software, if you have your basic song structure completed export to mp3 and import into video software to synchronize audio and video, this allows you to easily make changes to video, (or re-export/import audio changes) until you've completed both, then if for some reason? you still want to use Sonar with the video file, it may be easier to align. In any case you'd probably want to use video software to export your final audio/video project to required or various media types. 
Even the basic Windows included/free Movie Maker software may suffice depending how complex your video is.  

I'm pretty sure any changes to the Media Foundation platform will need to come from Microsoft before SONAR can implement them.
 
I would never consider SONAR for video editing, but find the ability to load videos very helpful. In a recent project, the video was edited in Vegas but the duration/timing of sections in the video was subject to change. I brought the video into SONAR, and instead of creating a "soundtrack" per se, created stems for each section and brought them into Vegas. When the timings were finalized, it was a simple matter to move the stems around and/or trim them.

Oh I definitely agree Sonar should never try to be a video editor; what I'd love to see though is an improvement in workflow.  Right now I do a variation of what both John and Craig suggest, preparing my video files in Premiere and doing any final striping/output there.  
 
The hassle is, if for example I'm doing sound design or music for a commercial and they recut it (which happens about 4000 times on an average commercial haha), I then need to line it up in Premiere, create some kind of picture in picture to reference in Sonar where the changes are, and make sure it starts at the exact same time (they always seem to put a different amount of black before each version).  If Sonar supported multiple video file layers and the ability to easily line them up, I could have all my versions accessible from within Sonar and easily reference back and forth any changes.
 
I realize these kinds of features aren't really high on the list for most people who use Sonar strictly to create music - but I think it really could become a powerful post audio tool with a few enhancements like this... easier said than done though, I'm sure!
 

This is a major pain...I have a video at 00:00:00:00 and have to add a few notes to the front, thanks to the client
so, I need to bump the video forward...when I type in the offset, sonar just hesitates for that amount f time instead of moving the video forward...I'm using an avi file, which sonar seems to like best

dannyjmusic
This is a major pain...I have a video at 00:00:00:00 and have to add a few notes to the front, thanks to the client
so, I need to bump the video forward...when I type in the offset, sonar just hesitates for that amount f time instead of moving the video forward...I'm using an avi file, which sonar seems to like best

 
1. Please read post #4.
2.  You want to slide the video later, not enter an offset. The offset function offsets the start time further into the file, it doesn't offset the file.
 
One more tip: I always convert whatever I'm given to WMV, it takes up a lot less space than AVI (particularly the horror known as uncompressed AVI). It won't affect your ability to create a soundtrack, and you can always export the audio to bring into your video setup for whatever the final format might be.