Professional data recovery services can be pricey. I know when I looked awhile back, a 120gb HD was going to cost around $2500.00 (that was with forensic to show how it was deleted). Otherwise it was around $1000.00. You might look at some of the data recovery softwares (make sure they work with dvd recovery), and try one out. You can usually do a trial which will show you what can be recovered, but won’t actually perform the recovery, unless you buy the software. It is highly unlikely you will get it all back, but you could very well get most of your footage back.