First of all, you need to decide what you want to do with the video. Do you want to make a straight backup of it, or do you want to edit it in a software package? Do you want to keep it in HD, or do you want to reduce it to standard definition (SD)?
Either way, the main options available are the following:
- Straight backup to standard definition (SD) DVD using a standalone DVD recorder (no PC required, expensive depending on recorder you choose, loses HD quality, simplest method)
- Copy video clips to PC, edit/encode to HD format & burn to Blu-ray (keeps HD quality, more expensive (cost of Blu-ray burner/disks), takes more time)
- Copy video clips to PC, edit/encode to SD format & burn to DVD (loses HD quality, should be achievable with your current set-up assuming you get software to work)
- Copy video clips to PC, create AVCHD disk from files without editing (can be done with Blu-ray OR DVD disks, keeps HD quality no editing therefore relatively straightforward)
The final method can be done using a free software called TSMuxer (search for it on Videohelp.com for download link & guides), and I think you can do it with Nero. However - this is the only method I haven't tried so can't guarantee if it works. You also need a Blu-ray player capable of playing AVCHD format disks AND it must accept the codec used by your camcorder!
Once you decide what exactly you want to do, then it'll be easier to guide you further.