OK. Let's try...
Is the burning part working at all? Can you now burn other files?
Are the problem files on your hard drive? What is the format? Are they e.g. MP3 or WMA?
If they are WMA, where did you get them from? It is possible to use a copy protection mechanism when encoding WMA. Although that should not prevent burning them to a CD if the WMA files are still on the same PC that ripped them from the original audio CD.
That copy protection mechanism is named "Enable Personal Rights Management" in Media Center's encoding options (Advanced tab there). I don't know if it has the same name in Media Jukebox. In Microsoft Windows Media Player that thing is named "Copy protect music". If this is the case then tick that off and rip again.
What kind of CD you are trying to burn: an ordinary audio CD (can be played on any CD player) or a data CD (can include about one hundred or more e.g. MP3 or WMA files)?
Did you install that Adaptec CD burning software again? If you did and you still need it then you probably should upgrade to a current version. It is not anymore an Adaptec product (for some years now). The new name is Roxio Easy Media Creator (
www.roxio.com). Even better choice might be Nero (
www.nero.com), I think. Both are very extensive and unfortunately relative expensive too. Actually you can buy a new CD burner with a software package for less.
Easy as pie, isn't it?