Safe and low effort roll
I saw this video at a roll tune-up class and then bought my own copy for review. They teach the "twist-sweep" roll which seems safer and more protective of your shoulder than some others. The learning progression is effective and the roll technique focuses on the strength of your torso rather than your arms. I had degenerated from a solid c-to-c roll to something pretty sloppy and this video and a tune up class are helping me get back to something fluid and reliable.

The second half has a lot of diagnostic and corrective hints for ironing out weaknesses in your style.

It definitely helps to have an instructor to help manipulate the paddle and get you to relax your arms and hands on the paddle. The paddle is used mostly as a guide, not as a lever.

I LEARNED HOW TO ROLL MY KAYAK!
I have struggled for years trying to roll my kayak reliably. With this video, several sessions at the lake, doing one step at a time, I did it!

very clear presentation
When learning the kayak roll, one of the most difficult things is to visualize what your body is supposed to be doing in 3-d, while your reference frame is turning! The video really helps with that. I flailed around for two days of rolling lessons in a pool until I got the idea that your knee is really the thing that helps you perform the "hip-snap" to turn you over, which my teachers weren't telling me but which the video stressed. Recommended.

Grate instructional Video
This video helped clear up quit a few misconceptions I had about the Kayak roll. IF you have already had a roll class this video is a grate reminder tool. This video reinforced the instruction given in the Kayak roll class I took at a local educational institute. Be Good and Have fun.

Great DVD
I would highly recommend this to anyone wanting to learn to roll. It teaches a basic roll and breaks it down into its different components.