using old hard drive in new dvr?

[highdef925]

Right now I am using io digital cable's Scientific Atlanta 8300HD dvr box. I plan on, however, getting a new dvr with more capabilities very soon, but to do this, i need to figure out if there's a way to take out the hard drive of this box & put it in the new dvr. I'm aware this would violate the lease of my dvr, but I'm going to ask you disregard this. I just need a technical way to do this because this requires knowing what other dvr's will work with the hard drive of my old dvr. So that is basically my question: is it possible for me to put my old hard drive into a new dvr..& if it is, which dvr will be able to accept this hard drive, seeing as they need to be capable with each other.

thank you very much.

[mkm4]

Are you trying to do this to copy over your saved programs?
It won't work. They are encrypted and will only work on the DVR the drive was attached to.