Quote Originally Posted by yuvchg
..I have been using Roxio and I moved to Nero and then all the problems start...

The computer act like I don't have a CD/DVD drive!
Filter Class drivers then would seem to be your problem

'Burning software' adds its own 'driver' (the class filters I just mentioned, which add the writing function for that software) & these get themselves in conflict with others, simplest advice is to remove all burning software, check your aspi layer, remove all drives in safemode & reboot & then re-introduce each bit of software testing as you go..

Note things like 'enhanced ide' drivers & the presence of virtual drive software (such as daemon tools or alcohol 120) can also do this, they want removing for now too .

& welcome to WD forums yuvchg.