Dvdr3390/37

[qanda]This thread is about the Philips DVDR3390 DVD Player/Recorder. Click here to see full specs[/qanda]I have a Philips DVDR3390/37 Recorder/Player. When I record a video program on this unit and try to "Make Compatible ( using Ridata 4X DVD+RW Disc)
I do not get the option to "Make Compatible
I can play it back on the recorder/player it was recorded on but unable to watch it on my PC.
When I put it in the DVD drive on the PC it says “Blank Disc”
The PC is equipped with NEC 3500A DVD read/write unit.
Any help appreciated.
Thanks in advance