Hi - I found your review of this unit helpful however I notice that you, like my local dealer, make an issue of the portability of data written by this device. I am unclear what you mean. Are you saying that the data written by this device cannot be read using a normal DVD Rom drive, or that if you use a UDF type format as per CDR/RW then portability will be a problem (which I would expect) ? Is it possible to use this device to 'master' a disk to make the data portable? ...as opposed to the topping-up of a disk (for example using Windows Explorer in the way that CDR's *CAN* be used, but don't have to be used).
As I'm about to invest in one of these units very soon I would be grateful for some clarification as Panasonic themselves seem uncertain about this!
kind regards
Mark

That's exactly right. You can use the drive in packet write mode, but to make DVDs that are readable in other drives you have to master them.