Just got my new 8300 and I am using Sonic RecordNow! to burn data disks.  Teac DVD+RW is having no problem writing to Ridata CD+Rs, but is not writing to KHypermedia DVD+Rs.  Told by tech support to try another type of DVD+Rs.  Does this sound right?  Is it common for DVD+RW drives to not work with a particular brand of disks?  I appreciate your thoughts!!