External CD Burner is not burning CD's

Alright I installed one for a buddy of mine, installation went smooth and everything, so he goes to burn a cd with nero, it goes through the whole process of burning a CD and actually looks like its burning a cd, then when he goes to play it, nothing, it’s still a blank disk…

Anyone know why it won’t burn?

Test the media/disc in another drive/computer. If it works there, then your computer/OS has a software conflict. That is featured in a bunch of troubleshoots on m$ support sites and also in stickies here in ths forum.