Some CD's can't be read by the CD-ROM

[viral.trojan]

I had bought some dvd's of digit at the i bought them, they could be opened and read, but now if i m trying to insert it and open it then @ dvd's from it can not be read
I also used a tool provided by microsoft to detect the problems, so i got the answer that the DVD is ureadable
What to do any1 can help me 4 this, pls do reply

 

[mastercool8695]

are the dvd's in good condition ?

 

[viral.trojan]

yes the dvd's are in very good condition
do u hve any other solution then pls tell me

 

[d6bmg]

Insert any other good DVD. If the drive can read it, then the problem lies with your concerned DVD, otherwise the problem is of the DVD drive.