SH-S223F reading/writing issue

[qanda]This thread is about the Samsung SH-S203B / TS-H653B. Click here to see full specs[/qanda]i bought this drive in August with my new pc and didn’t really use it for anything other than installing vista, quake4 and visual studio.

Recently he had alot of trouble reading the fifa09 DVD, had to try about 5 times to make it stop spinning and eventually didn’t get it installed.
Now i wanted to burn some dvd’s but i always end up getting size errors during verification (target smaller than source or smth). He even doesn’t write on the disk afaik. He also sometimes refuses to take the disk after 2 minutes of spinning up and down

Is my drive fubar? or can it be mobo / sata cable / vista?

firmware SB00
gigabyte EP45-DS3 mobo F8 firmware
Vista x64 SP1
E8500 no oc
4gig ram