How can I identify High Def video files?

Back in the old days (Hazel 2.x) I had rules set up that could identify a hd video file (m4v) and do something with it (usually convert it to an iphone friendly size). I did this using the pixel width attribute to match rules.
I haven't used these rules in forever and I'm finding I want to again now, but they no longer work.
Hazel doesn't seem to be able to pick up the pixel width in my video files anymore.
In fact the only way I can get the rule to match is to set "pixel width is blank" as the rule. Which of course, is kinda useless here.
I don't know what has changed, whether its hazel 3.x, or something different in spotlight with Lion, but I'd like to be able to identify my HD videos again. I just can't figure how given what's available.
Any ideas?
I haven't used these rules in forever and I'm finding I want to again now, but they no longer work.
Hazel doesn't seem to be able to pick up the pixel width in my video files anymore.
In fact the only way I can get the rule to match is to set "pixel width is blank" as the rule. Which of course, is kinda useless here.
I don't know what has changed, whether its hazel 3.x, or something different in spotlight with Lion, but I'd like to be able to identify my HD videos again. I just can't figure how given what's available.
Any ideas?