Can you ruin dvd-r by putting a few cds on them?

Ok so there i was tring to burn a DVD and i put my DVD into my DVD burner and the DVD-RW drive (F) changes to CD drive (F) but the picture shows a DVD-R I have used the DVD-Rs before and had no problem, then i moved and put some music cd’s with the blank dvds. is that the problem? or is it something else? I appreciate your help.

Windows XP itself doesn’t have a DVD burning engine, and can only burn CDs by default.

What you described is normal.

Use a standalone burning application, such as Nero or ImgBurn, to create discs.