Boot Camp won't recognize Windows install CD
I am trying to install Windows XP on my MacBook Pro so I can use some software that only runs on older versions of Windows. When I insert the Windows install disk, it spins, makes some shuddering noises, and ejects the disk. The disk doesn't show up in Finder either. This seems to be the exact same problem a user had in a previous thread (https://discussions.apple.com/thread/2562503?start=0&tstart=0), but I don't know if they came up with a solution in the end (also, I'm not quite sure I even understood their suggested solutions). My disk drive has no problem with other CDs (e.g. music CDs), and it doesn't look like the install disk is at all scratched or dirty.
More details:
I am using Boot Camp Assistant version 3.0.4 of a MacBook Pro on a 2011 MacBook Pro with OS X 10.6.8. The version of Windows that I am trying to install is a 2009 CD of a full version Windows XP Pro with SP3, which the vendor (http://www.softwarespeedy.com/microsoft-windows-xp-pro-with-sp3/)
described as "a full version on all brands of systems, Macs or custom butil systems. Purchase includes disk, UPK, and certificate of authenticity license which will validate with Microsoft and activate."
Please help!
Lisa
MacBook Pro, Mac OS X (10.6.8)