I find it hard to believe you have 100GB of files that you don't already have on optical media.
I mean, Samsung don't allow there own 8Gb phone in there buildings. (Someone could fit there entire workings into it? Haa.) So feel proud that you have well over 10x more data than the entirity of Samsung.
- As for the problem. A better description and some screenys would help. First thing that comees to my mind, is that is the program/ PC turning off properly?