smoke started coming from the top of the HD
Is there any way that i can get data off this HD please?
I doubt it, sounds as if you have burnt out the electronics at least.
I plugged it back in to my DVD recorder and now the DVD recorder wont start.
DVD HD recorder sometimes relies on some software on a hidden partition of the drive to run.
When swapping to a larger drive in a recorder the usual method is to image or the old drive to the new one.
If you have a spare drive it may be worth fitting to the recorder and see if it starts.
Make and model of recorder?