Anyone who has done a workout dvd

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Hi Guys :)

I am currently on day 9 of the 30 day shred and although I haven't lost any weight, I've lost 1 inch off my waist and 1.5 inches off my hips.

So my question is, from your personal experience, which workout dvd helped you lose the most number of inches (eg- p90x, ripped in 30, body revolution, 10 minute solutions, etc)

Thanks everyone
Melissa x