Sony RDR-GX7 DVD Recorder "rhyming list" Questions

Does it use DVD-R or DVD R discs ? This model can not record. So you need to use a finalized disc - the listed spec is DVD-V (Region 1 or All). It also can't read DVD-ROM or DVD-RAM (trying this ...

Sony RDR-GX7 DVD player/recorder - won't play DVD's!! I have had this DVD player and never really had a need to use the recorder function much, but the problem I encounter is even worse - I cannot ...