I bought a Liteon 48125W (48x12,48x) and it works fine, my PC detected it straight away etc. I copied a CD to test it out, i used 32x CDR's, and when the copying had finished i inserted it into my CD-ROM drive but it would not recognise the CD at all, so i put it back into the CDRW that copied it and the movie i had copied opened up and played. Why is my CDROM not recognising the CD's? Should i use the copy of Nero that came with the CDRW?