Plextor UltraPleX 40max Problem



I've a huge problem with my Plextor UltraPleX 40max.
When i insert a cd-rom the orange led blinks but the drive doesnt make anything.
I upgrated the last firmware 6 months ago and the problem started yesterday when i inserted a cd-rom which had little scratches on it's surface. The drive needed some time to read this cd but after a few seconds it works... but now this ... what can i do?
I bought this drive in march 2000 so i don't have warranty! :frowning:

Please help!