Problem when I try with DVD Decrypter

Hi,
I found a problem when I tried with DVD Decrypter.
I got an error message.
It is attached below.

DVD Decrypter
I/O Error!
Device:[3:0:0] optiarc DVD RW AD-717OA 1.02(E:)(ATA)
ScsiStatus:0x02
Interpretation: Check Condition
ScsiStatus: 0x02 Interpretation: Check Condition
CDB: 280000 OE 8920000001 00
Interpretation: Read (10) – Sector: 952608
Sense Area: FO 000300 CE 8920 GA 000000000200 CM) 0004)00 Interpretation: No Seek Complete
What is the solution?
Please help.
Thanks.
