DVD/CD drive playing silly buggers? or maybe that game disc is failing/scratched or the likes?
Might be worth updating motherboard/chipset drivers, specifically the IDE/SATA ones. Also possibly borrowing another drive. It's not uncommon for drives to fail intermittantly and cause system instability like this.
You're still quite free to c&p some examples in Swedish, I can read a little of it.
If it is the drive then you can consider yourself lucky, probably the cheapest part of the whole system
Edit: from that last copy & paste, it's citing both ATAPI and the hdd controllers. Therefore very possibly an issue with the drivers as I said.
Also, do you have any virtual drive software installed? Alcohol 120%, Daemon tools or the sort?