Is it possible to format the new 1TB drive in the Magic box, copy files from the 2 partitions from the old drive to new one using a Windows 7 pc (previous posts described using Linux - would have to go via another drive),
I do not think so as Windows (any version) does not read JFS partitions.
If you download linux and burn the image to a CD/DVD, you can boot from the CD/DVD, and you have an option to run linux directly from the CD/DVD, (trial I think) rather than installing it. That way, you can prep the 1TB drive in the MagicTV, then install both that and the old drive in your PC. Boot to linux and run it all from the CD/DVD, and you will not have to worry about damaging your Windows 7 installation. If you are like me and not familiar with Linux, you will have to google some commands to mount the disks as root, and then copy the files across.
Maybe run chkdsk while the drive is in the pc to see what it says
Once the drive is installed in your PC, go to the manufacturer's website and they should have a drive testing program. Run that if you have any issues. Hiren's boot CD is a good utility disk that has all those types of programs.
What I have noticed is some 'auto restarts' - power on the unit with the remote, shows the picture/sound briefly, then shows a screen that it's going to restart (with an OK, but doesn't give you the chance to press OK) and then powers off and restarts.
I too have been getting this lately. The last time it happened, I turned the MagicTV on and then got side tracked. When I came back, the MagicTV was operating correctly. The restart occured as soon as I pressed the Play button to bring up the list of recorded programs. This was the first button I pressed and I have not had it happen since so cannot comment further.