If she uses an editor, such as Pinnacle, she can import all the recorded material onto her/your PC and then add the bits together, move them around, add sound tracks and/or music and turn them into what is required prior to burning (or converting them for burning) to DVD.
The process can seem daunting at the outset but if you persevere and do a little at a time it does come together.
In that case, as I understand it she will need either to convert the .vob files into a format recognised by video-editing s/ware, or alternatively s/ware capable of importing .vob files.
This is now getting outwith my area of knowledge, but if you have a look at my "click here" (in my posting of 13:47), and then look at the links posted by Woodchip, it might point you in the right direction.
Back in January or February this year there was a copy of Ulead Media Studio Pro7 video editing program on the freebie disk . I have used this and found it to be very good. You will need a cable to connewct your video camera to your computer. I dont know what camer connections yours has but firewire is common for this. Use the ulead software to capture your video to your HDD. Then start the editing process. Cut out the bad bits shorten so as not to be boring to watch add comentry and music as you wish then use Ulead to burn a DVD. Like all software there is a learning curve but it is not difficult and worth the effort. I find the burning software in Ulead very good. If you need any more help please post back.