I have an older model Vaio - VGN-FS550. I tried making a set of Recovery Discs. It calls for 2 DVDs and one CD. Each time I try creating a set, it fails after creating the two DVDs. I've now wasted 6 DVDs, but still don't have the CD. Can I just continue from where it left off and just create the CD? I used DVD-R and CD-R, which is what it calls for.