I have Prism Video Converter Plus, MacBook Pro OS X 10.5.6. When I drag a DVD+R, originally recorded on a sony dvd recorder formatted and all, Prism almost immediately goes into NOT RESPONDING mode. Basically crashes! So I re-recorded my material (old VHS's) to a DVD-R and it accepted that, what's up? I don't want to re-record 50 old VHS's!