I have a fairly new Sony laptop (bought over the summer, VGN-A170P). Very few types of CDRs will burn correctly. I'm not sure if this has always been true, but I don't remember the problem being as bad before. It most often fails (only saying there was an error and the cd writing wizard is unable to continue) about midway through the writing process. I've tried CDRs from Sony, Imation, Maxell, etc. Some older Maxell CDR's I have burn successfully every time while the nearly all others consistently fail (including newer Maxells). I had Sonic RecordNow installed and tried uninstalling that but it didn't help. I've tried changing burning speeds, closing all open applications, disabling anti virus and more. I'm using Windows XP Professional SP2.